Details of each database available in SEER*Stat are provided below. We provide a database dictionary and a data description document to describe all the variables in the Research and Research Plus databases. We also provide a summary by SEER*Stat session type of the available databases and main characteristics of each database.

On This Page:

Documentation of SEER*Stat Variables

  • Dictionary of  SEER Variables: Excel (XLSX, 36 KB) or PDF (PDF, 272 KB) - Updated April 2026
    Lists all the variables in the SEER*Stat databases with the following information: NAACCR item number, description and definitions, category name, and availability in the Research, Research Plus, and SEER 21 Limited-Field databases (see SEER Data Change History for more information).
  • Data Description for SEER Research and Research Plus (PDF, 1.6 MB) - Updated April 2026
    Provides documentation for each of the variables in the Research and Research Plus databases.

County attribute data from the U.S. Census are also linked to the SEER*Stat databases. Variables available are dependent on the type of database:

  • Research databases have two time-dependent fields available: Median Household Income and Rural-Urban Continuum Codes.
  • Research Plus databases have many fields available from the two types of county attributes: Static and Time-Dependent.

Number of Records in the SEER Data

Registries (Years) All Cases ** Malignant Cases Malignant +
In Situ Cases
SEER 21 (2000-2023) 18,809,827 16,782,305 18,214,438
SEER 21 (2023) 976,660 843,288 938,388
SEER 17 (2000-2023) 10,944,803 9,709,322 10,608,712
SEER 17 (2023) 569,524 488,224 548,781
SEER 12 (1992-2023) 6,016,379 5,375,000 5,857,480
SEER 12 (2023) 250,790 213,575 240,980
SEER 8 (1975-2023) 5,475,910 4,953,837 5,359,290
SEER 8 (2023) 181,740 153,182 174,441

* Registries included in the data are defined in Registry Groupings in SEER Data and Statistics.
** All Cases includes cases coded as benign and borderline malignancy tumors in ICD-O-3.

Databases by SEER*Stat Session Type

Rate Sessions

Incidence - SEER Research Data, 8 Registries, Nov 2025 Sub (1975-2023)

  • SEER 8 covers approximately 8.3% of the U.S. population (based on 2020 census)
  • Most years available, but smallest geographic coverage
  • Rates are available for white, black, other (AI/AN, API)
  • Contains one record for each of 5,475,910 tumors
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1975+
    • Connecticut - 1975+
    • Hawaii - 1975+
    • Iowa - 1975+
    • New Mexico - 1975+
    • Seattle (Puget Sound) - 1975+
    • Utah - 1975+
    • Atlanta (Metropolitan) - 1975+

Incidence - SEER Research Data, 12 Registries, Nov 2025 Sub (1992-2023)

  • SEER 12 covers approximately 12.2% of the U.S. population (based on 2020 census)
  • Rates are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Contains one record for each of 6,016,379 tumors
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1992+
    • Connecticut - 1992+
    • Hawaii - 1992+
    • Iowa - 1992+
    • New Mexico - 1992+
    • Seattle (Puget Sound) - 1992+
    • Utah - 1992+
    • Atlanta (Metropolitan) - 1992+
    • San Jose-Monterey - 1992+
    • Los Angeles - 1992+
    • Alaska Natives - 1992+
    • Rural Georgia - 1992+

Incidence - SEER Research Data, 12 Registries (excl AK), Nov 2025 Sub (1992-2023)

  • SEER 12 covers approximately 12.2% of the U.S. population (based on 2020 census)
  • Rates are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Contains one record for each of 6,002,508 tumors
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1992+
    • Connecticut - 1992+
    • Hawaii - 1992+
    • Iowa - 1992+
    • New Mexico - 1992+
    • Seattle (Puget Sound) - 1992+
    • Utah - 1992+
    • Atlanta (Metropolitan) - 1992+
    • San Jose-Monterey - 1992+
    • Los Angeles - 1992+
    • Rural Georgia - 1992+

Incidence - SEER Research Data, 17 Registries, Nov 2025 Sub (2000-2023)

  • SEER 17 covers approximately 26.5% of the U.S. population (based on 2020 census)
  • Rates are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Contains one record for each of 10,944,803 tumors
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+

Incidence - SEER Research Data, 17 Registries (excl AK), Nov 2025 Sub (2000-2023)

  • SEER 17 covers approximately 26.5% of the U.S. population (based on 2020 census)
  • Rates are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Contains one record for each of 10,933,131 tumors
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+

Incidence - SEER Research Limited-Field Data, 21 Registries, Nov 2025 Sub (2000-2023)

  • Largest geographic coverage available - approximately 47.9% of the U.S. population (based on 2020 census)
  • Rates are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Contains one record for each of 18,809,827
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Idaho - 2000+
    • New York - 2000+
    • Illinois - 2000+
    • Texas - 2000+

Incidence - SEER Research Limited-Field Data, 21 Registries (excl IL), Nov 2025 Sub (2000-2023)

  • Largest geographic coverage available - approximately 41.9% of the U.S. population (based on 2020 census)
  • Includes additional Cause of Death (COD) and Follow-up variables not available in the other limited-field database.
  • Rates are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Contains one record for each of 17,008,191 tumors
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Idaho - 2000+
    • New York - 2000+
    • Texas - 2000+

Incidence-Based Mortality - SEER Research Data, 8 Registries, Nov 2025 Sub (1975-2023)

  • SEER 8 covers approximately 8.3% of the U.S. population (based on 2020 census)
  • Used for very specialized analyses, for details refer to Incidence-Based Mortality
  • Rates are available for white, black, other (AI/AN, API)
  • Contains one record for each of 3,449,394 tumors from 2,907,726 individuals. Only patients who have died by the study cut-off date are included in this database.
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1975+
    • Connecticut - 1975+
    • Hawaii - 1975+
    • Iowa - 1975+
    • New Mexico - 1975+
    • Seattle (Puget Sound) - 1975+
    • Utah - 1975+
    • Atlanta (Metropolitan) - 1975+

Incidence-Based Mortality - SEER Research Data, 12 Registries, Nov 2025 Sub (1992-2023)

  • SEER 12 covers approximately 12.2% of the U.S. population (based on 2020 census)
  • Used for very specialized analyses, for details refer to Incidence-Based Mortality
  • Rates are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Contains one record for each of 3,301,563 tumors from 2,796,142 individuals. Only patients who have died by the study cut-off date are included in this database.
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1992+
    • Connecticut - 1992+
    • Hawaii - 1992+
    • Iowa - 1992+
    • New Mexico - 1992+
    • Seattle (Puget Sound) - 1992+
    • Utah - 1992+
    • Atlanta (Metropolitan) - 1992+
    • San Jose-Monterey - 1992+
    • Los Angeles - 1992+
    • Alaska Natives - 1992+
    • Rural Georgia - 1992+

Incidence-Based Mortality - SEER Research Data, 17 Registries, Nov 2025 Sub (2000-2023)

  • SEER 17 covers approximately 26.5% of the U.S. population (based on 2020 census)
  • Used for very specialized analyses, for details refer to Incidence-Based Mortality
  • Rates are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Contains one record for each of 5,468,697 tumors from 4,682,796 individuals. Only patients who have died by the study cut-off date are included in this database.
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Louisiana - 2000+

Incidence-Based Mortality - SEER Research Plus Limited-Field Data, 21 Registries (excl IL)

  • Largest geographic coverage available - approximately 41.9% of the U.S. population (based on 2020 census)
  • Used for very specialized analyses, for details refer to Incidence-Based Mortality
  • Rates are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Contains one record for each of 8,542,839 tumors from 7,349,906 individuals. Only patients who have died by the study cut-off date are included in this database.
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, …, 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Idaho - 2000+
    • New York - 2000+
    • Texas - 2000+

Incidence - SEER Research Data with Delay-Adjustment, 8 Registries, Malignant Only, Nov 2025 Sub (1975-2023)

  • Allows the calculation of delay-adjusted statistics for all sites combined and several individual cancer sites
  • SEER 8 covers approximately 8.3% of the U.S. population (based on 2020 census)
  • Most years available, but smallest geographic coverage
  • Delay-adjusted rates are available for all races combined, white, black
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Includes only malignant behavior
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1975+
    • Connecticut - 1975+
    • Hawaii - 1975+
    • Iowa - 1975+
    • New Mexico - 1975+
    • Seattle (Puget Sound) - 1975+
    • Utah - 1975+
    • Atlanta (Metropolitan) - 1975+

Incidence - SEER Research Data with Delay-Adjustment, 12 Registries, Malignant Only, Nov 2025 Sub (1992-2023)

  • Allows the calculation of delay-adjusted statistics for all sites combined and several individual cancer sites
  • SEER 12 covers approximately 12.2% of the U.S. population (based on 2020 census)
  • Race and ethnicity groupings available
    • All Races
    • White
    • Black
    • Asian/Pacific Islander
    • Non-Hispanic White
    • Non-Hispanic Black
    • Non-Hispanic PRCDA/AIAN
    • Non-Hispanic Asian/Pacific Islander
    • Hispanic
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Includes only malignant behavior
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1992+
    • Connecticut - 1992+
    • Hawaii - 1992+
    • Iowa - 1992+
    • New Mexico - 1992+
    • Seattle (Puget Sound) - 1992+
    • Utah - 1992+
    • Atlanta (Metropolitan) - 1992+
    • San Jose-Monterey - 1992+
    • Los Angeles - 1992+
    • Alaska Natives - 1992+
    • Rural Georgia - 1992+

Incidence - SEER Research Data with Delay-Adjustment, 17 Registries, Malignant Only, Nov 2025 Sub (2000-2023)

  • Allows the calculation of delay-adjusted statistics for all sites combined and several individual cancer sites
  • SEER 17 covers approximately 26.5% of the U.S. population (based on 2020 census)
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Race and ethnicity groupings available
    • All Races
    • White
    • Black
    • Asian/Pacific Islander
    • Non-Hispanic White
    • Non-Hispanic Black
    • Non-Hispanic PRCDA/AIAN
    • Non-Hispanic Asian/Pacific Islander
    • Hispanic
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Includes only malignant behavior
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Louisiana - 2000+

Incidence - SEER Research Limited-Field Data with Delay-Adjustment, 21 Registries, Malignant Only, Nov 2025 Sub (2000-2023)

  • Allows the calculation of delay-adjusted statistics for all sites combined and several individual cancer sites
  • SEER 21 covers approximately 45.8% of the U.S. population (based on 2020 census)
  • Largest geographic coverage for delay-adjusted statistics
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Race and ethnicity groupings available
    • All Races
    • White
    • Black
    • Asian/Pacific Islander
    • Non-Hispanic White
    • Non-Hispanic Black
    • Non-Hispanic PRCDA/AIAN
    • Non-Hispanic Asian/Pacific Islander
    • Hispanic
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Includes only malignant behavior
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Idaho - 2000+
    • New York - 2000+
    • Illinois - 2000+
    • Texas - 2000+

Incidence - SEER Research Plus Data with Delay-Adjustment by Stage, 17 Registries, Breast and Prostate, Malignant Only, Nov 2025 Sub (2000-2023)

  • Only available with the Research Plus data
  • Allows the calculation of delay-adjusted statistics for breast and prostate cancers by stage
  • SEER 17 covers approximately 26.5% of the U.S. population (based on 2020 census)
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Race and ethnicity groupings available
    • All Races
    • White
    • Black
    • Asian/Pacific Islander
    • Non-Hispanic White
    • Non-Hispanic Black
    • Non-Hispanic PRCDA/AIAN
    • Non-Hispanic Asian/Pacific Islander
    • Hispanic
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Includes only malignant behavior
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Louisiana - 2000+

Incidence - SEER Research Plus Limited-Field Data with Delay-Adjustment by Stage, 21 Registries, Breast and Prostate, Malignant Only, Nov 2025

  • Only available with the Research Plus data
  • Allows the calculation of delay-adjusted statistics for breast and prostate cancers by stage
  • SEER 21 covers approximately 45.8% of the U.S. population (based on 2020 census)
  • Largest geographic coverage for delay-adjusted statistics
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Race and ethnicity groupings available
    • All Races
    • White
    • Black
    • Asian/Pacific Islander
    • Non-Hispanic White
    • Non-Hispanic Black
    • Non-Hispanic PRCDA/AIAN
    • Non-Hispanic Asian/Pacific Islander
    • Hispanic
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Includes only malignant behavior
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Idaho - 2000+
    • New York - 2000+
    • Illinois - 2000+
    • Texas - 2000+

Case Listing and Frequency Sessions

Incidence - SEER Research Data, 8 Registries, Nov 2025 Sub (1975-2023)

  • SEER 8 covers approximately 8.3% of the U.S. population (based on 2020 census)
  • Most years available, but smallest geographic coverage
  • Contains one record for each of 5,475,910 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1975+
    • Connecticut - 1975+
    • Hawaii - 1975+
    • Iowa - 1975+
    • New Mexico - 1975+
    • Seattle (Puget Sound) - 1975+
    • Utah - 1975+
    • Atlanta (Metropolitan) - 1975+

Incidence - SEER Research Data, 12 Registries, Nov 2025 Sub (1992-2023)

  • SEER 12 covers approximately 12.2% of the U.S. population (based on 2020 census)
  • Contains one record for each of 6,016,379 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1992+
    • Connecticut - 1992+
    • Hawaii - 1992+
    • Iowa - 1992+
    • New Mexico - 1992+
    • Seattle (Puget Sound) - 1992+
    • Utah - 1992+
    • Atlanta (Metropolitan) - 1992+
    • San Jose-Monterey - 1992+
    • Los Angeles - 1992+
    • Alaska Natives - 1992+
    • Rural Georgia - 1992+

Incidence - SEER Research Data, 17 Registries, Nov 2025 Sub (2000-2023)

  • SEER 17 covers approximately 26.5% of the U.S. population (based on 2020 census)
  • Contains one record for each of 10,944,803 tumors.
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+

Incidence - SEER Limited-Field Research Data, 21 Registries, Nov 2025 Sub (2000-2023)

  • Covers approximately 45.8% of the U.S. population (based on 2020 census)
  • Contains one record for each 18,809,827 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Idaho - 2000+
    • New York - 2000+
    • Illinois - 2000+
    • Texas - 2000+

Incidence - SEER Limited-Field Research Data, 21 Registries (excl IL), Nov 2025 Sub (2000-2023)

  • Covers approximately 45.8% of the U.S. population (based on 2020 census)
  • Includes additional Cause of Death (COD) and Follow-up variables not available in the other limited-field database.
  • Contains one record for each 17,008,191 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Idaho - 2000+
    • New York - 2000+
    • Texas - 2000+

Prevalence Sessions

Incidence - SEER Research Data, 8 Registries, Nov 2025 Sub (1975-2023)

  • SEER 8 covers approximately 8.3% of the U.S. population (based on 2020 census)
  • Most years available, but smallest geographic coverage
  • Prevalence proportions are available for white, black, other (AI/AN, API)
  • Contains one record for each of 5,475,910 tumors
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1975+
    • Connecticut - 1975+
    • Hawaii - 1975+
    • Iowa - 1975+
    • New Mexico - 1975+
    • Seattle (Puget Sound) - 1975+
    • Utah - 1975+
    • Atlanta (Metropolitan) - 1975+

Incidence - SEER Research Data, 12 Registries, Nov 2025 Sub (1992-2023)

  • SEER 12 covers approximately 12.2% of the U.S. population (based on 2020 census)
  • Most years available for expanded race/ethnicity rates/prevalence proportions
  • Prevalence proportions are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Contains one record for each of 6,016,379 tumors
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1992+
    • Connecticut - 1992+
    • Hawaii - 1992+
    • Iowa - 1992+
    • New Mexico - 1992+
    • Seattle (Puget Sound) - 1992+
    • Utah - 1992+
    • Atlanta (Metropolitan) - 1992+
    • San Jose-Monterey - 1992+
    • Los Angeles - 1992+
    • Alaska Natives - 1992+
    • Rural Georgia - 1992+

Incidence - SEER Research Data, 17 Registries, Nov 2025 Sub (2000-2023)

  • SEER 17 covers approximately 26.5% of the U.S. population (based on 2020 census)
  • Prevalence proportions are available by expanded race (white, black, AI/AN, and API) and Hispanic ethnicity (Hispanic and non-Hispanic)
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Contains one record for each of 10,944,803 tumors
  • Two age variables are available: 20 age groups (< 1 year, 1-4 years, 5-9 years, ..., 90+ years) and single ages with 90+
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+

Incidence - SEER Limited-Field Research Data, 21 Registries (excl IL), Nov 2025 Sub (2000-2023)

  • Largest geographic coverage available for prevalence - approximately 41.9% of the U.S. population (based on 2020 census)
  • Includes additional Cause of Death (COD) and Follow-up variables not available in the other limited-field database.
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Contains one record for each of 17,008,191 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Idaho - 2000+
    • New York - 2000+
    • Texas - 2000+

Survival and Left-Truncated Life Table Sessions

Incidence - SEER Research Data, 8 Registries, Nov 2025 Sub (1975-2023)

  • SEER 8 covers approximately 8.3% of the U.S. population (based on 2020 census)
  • Most years available, but smallest geographic coverage
  • Contains one record for each of 5,475,910 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1975+
    • Connecticut - 1975+
    • Hawaii - 1975+
    • Iowa - 1975+
    • New Mexico - 1975+
    • Seattle (Puget Sound) - 1975+
    • Utah - 1975+
    • Atlanta (Metropolitan) - 1975+

Incidence - SEER Research Data, 12 Registries, Nov 2025 Sub (1992-2023)

  • SEER 12 covers approximately 12.2% of the U.S. population (based on 2020 census)
  • Contains one record for each of 6,016,379 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1992+
    • Connecticut - 1992+
    • Hawaii - 1992+
    • Iowa - 1992+
    • New Mexico - 1992+
    • Seattle (Puget Sound) - 1992+
    • Utah - 1992+
    • Atlanta (Metropolitan) - 1992+
    • San Jose-Monterey - 1992+
    • Los Angeles - 1992+
    • Alaska Natives - 1992+
    • Rural Georgia - 1992+

Incidence - SEER Research Data, 17 Registries, Nov 2025 Sub (2000-2023)

  • SEER 17 covers approximately 26.5% of the U.S. population (based on 2020 census)
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Contains one record for each of 10,944,803 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+

Incidence - SEER Limited-Field Research Data, 21 Registries (excl IL), Nov 2025 Sub (2000-2023)

  • Largest geographic coverage available for survival - approximately 41.9% of the U.S. population (based on 2020 census)
  • Includes additional Cause of Death (COD) and Follow-up variables not available in the other limited-field database.
  • Includes adjustments for areas impacted by hurricanes Katrina and Rita
  • Contains one record for each 17,008,191 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Alaska Natives - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+
    • Idaho - 2000+
    • New York - 2000+
    • Texas - 2000+

MP-SIR/SMR Sessions

Incidence - SEER Research Data, 8 Registries, Nov 2025 Sub (1975-2023)

  • Covers approximately 8.3% of the U.S. population (based on 2020 census)
  • Most years available, but smallest geographic coverage
  • Associated referent rates are for subsequent primary cancer diagnoses
  • Associated referent rates are available for white, black, other (AI/AN, API)
  • Contains one record for each of 5,475,910 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1975+
    • Connecticut - 1975+
    • Hawaii - 1975+
    • Iowa - 1975+
    • New Mexico - 1975+
    • Seattle (Puget Sound) - 1975+
    • Utah - 1975+
    • Atlanta (Metropolitan) - 1975+

Incidence - SEER Research Data, 12 Registries (excl AK), Nov 2025 Sub (1992-2023)

  • Covers approximately 12.2% of the U.S. population (based on 2020 census)
  • Associated referent rates are for subsequent primary cancer diagnoses
  • Associated referent rates are available for white, black, other (AI/AN, API)
  • Contains one record for each of 6,002,508 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1992+
    • Connecticut - 1992+
    • Hawaii - 1992+
    • Iowa - 1992+
    • New Mexico - 1992+
    • Seattle (Puget Sound) - 1992+
    • Utah - 1992+
    • Atlanta (Metropolitan) - 1992+
    • San Jose-Monterey - 1992+
    • Los Angeles - 1992+
    • Alaska Natives - 1992+
    • Rural Georgia - 1992+

Incidence - SEER Research Data, 17 Registries (excl AK), Nov 2025 Sub (2000-2023)

  • Largest geographic coverage available for MP-SIRs - approximately 26.5% of the U.S. population (based on 2020 census)
  • Associated referent rates are for subsequent primary cancer diagnoses
  • Associated referent rates are available for white, black, other (AI/AN, API)
  • Contains one record for each of 10,933,131 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+

Incidence - SEER Research Data, 8 Registries, Nov 2025 Sub (1975-2023) for SMRs

  • Covers approximately 8.3% of the U.S. population (based on 2020 census)
  • Most years available, but smallest geographic coverage
  • Associated referent rates are for mortality
  • Associated referent rates are available for white, black, other (AI/AN, API)
  • Contains one record for each of 5,475,910 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1975+
    • Connecticut - 1975+
    • Hawaii - 1975+
    • Iowa - 1975+
    • New Mexico - 1975+
    • Seattle (Puget Sound) - 1975+
    • Utah - 1975+
    • Atlanta (Metropolitan) - 1975+

Incidence - SEER Research Data, 12 Registries (excl AK), Nov 2025 Sub (1992-2023) for SMRs

  • Covers approximately 12.2% of the U.S. population (based on 2020 census)
  • Associated referent rates are for mortality
  • Associated referent rates are available for white, black, other (AI/AN, API)
  • Contains one record for each of 6,002,508 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 1992+
    • Connecticut - 1992+
    • Hawaii - 1992+
    • Iowa - 1992+
    • New Mexico - 1992+
    • Seattle (Puget Sound) - 1992+
    • Utah - 1992+
    • Atlanta (Metropolitan) - 1992+
    • San Jose-Monterey - 1992+
    • Los Angeles - 1992+
    • Alaska Natives - 1992+
    • Rural Georgia - 1992+

Incidence - SEER Research Data, 17 Registries (excl AK), Nov 2025 Sub (2000-2023) for SMRs

  • Largest geographic coverage available MP-SMRs - approximately 26.5% of the U.S. population (based on 2020 census)
  • Associated referent rates are for mortality
  • Associated referent rates are available for white, black, other (AI/AN, API)
  • Contains one record for each of 10,933,131 tumors
  • Some variables are not available in SEER*Stat case listings.
  • Geographic areas (registries) and years covered
    • San Francisco-Oakland SMSA - 2000+
    • Connecticut - 2000+
    • Hawaii - 2000+
    • Iowa - 2000+
    • New Mexico - 2000+
    • Seattle (Puget Sound) - 2000+
    • Utah - 2000+
    • Atlanta (Metropolitan) - 2000+
    • San Jose-Monterey - 2000+
    • Los Angeles - 2000+
    • Rural Georgia - 2000+
    • California excluding SF/SJM/LA - 2000+
    • Kentucky - 2000+
    • Louisiana - 2000+
    • New Jersey - 2000+
    • Greater Georgia - 2000+