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Incidence Rates Table

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Incidence Rate Report for Iowa by County

Thyroid (All Stages^), 2018-2022

All Races (includes Hispanic), Both Sexes, All Ages

Sorted by Recentaapc

County
sort alphabetically by name ascending 		2023 Rural-Urban Continuum Codes Φ
sort by rural urban descending 		Age-Adjusted Incidence Rate †
cases per 100,000
(95% Confidence Interval)
sort by rate descending 		CI*Rank ⋔
(95% Confidence Interval)
sort by CI rank descending 		Average Annual Count
sort by count descending 		Recent Trend
 Recent 5-Year Trend ‡ in Incidence Rates
(95% Confidence Interval)
sort by trend descending
Iowa 7 N/A 13.9 (13.3, 14.5) N/A 464 stable stable trend 0.1 (-2.7, 4.1)
US (SEER+NPCR) 1 N/A 12.9 (12.8, 12.9) N/A 45,453 falling falling trend -2.1 (-2.7, -1.6)
Woodbury County 7 Urban 13.9 (10.9, 17.6) 24 (7, 37) 15 falling falling trend -10.9 (-22.1, -3.9)
Story County 7 Urban 12.3 (9.0, 16.5) 34 (9, 39) 10 stable stable trend -3.5 (-19.9, 1.5)
Linn County 7 Urban 16.0 (13.7, 18.5) 14 (6, 29) 39 stable stable trend -1.9 (-14.6, 3.9)
Johnson County 7 Urban 12.5 (10.0, 15.5) 32 (12, 38) 18 stable stable trend -1.1 (-5.5, 1.1)
Black Hawk County 7 Urban 11.1 (8.6, 14.0) 37 (17, 39) 15 stable stable trend -0.4 (-7.9, 1.9)
Warren County 7 Urban 12.5 (8.7, 17.5) 33 (8, 39) 7 stable stable trend -0.1 (-2.0, 2.1)
Marion County 7 Rural 14.7 (9.3, 22.1) 19 (2, 39) 5 stable stable trend 1.5 (-1.0, 4.7)
Jasper County 7 Urban 12.9 (8.3, 19.2) 31 (5, 39) 5 stable stable trend 2.0 (-0.5, 5.5)
Dallas County 7 Urban 14.6 (11.5, 18.4) 20 (6, 36) 15 rising rising trend 2.2 (0.7, 5.1)
Des Moines County 7 Rural 9.1 (5.5, 14.1) 38 (16, 39) 5 stable stable trend 2.2 (-0.1, 5.3)
Polk County 7 Urban 14.0 (12.5, 15.6) 23 (12, 33) 69 rising rising trend 2.2 (1.6, 3.1)
Dubuque County 7 Urban 15.5 (12.0, 19.6) 15 (4, 36) 15 rising rising trend 2.6 (1.0, 4.7)
Scott County 7 Urban 14.5 (12.1, 17.2) 21 (8, 35) 27 rising rising trend 2.7 (1.3, 4.7)
Clinton County 7 Rural 11.9 (7.8, 17.3) 36 (7, 39) 6 rising rising trend 3.2 (0.5, 7.2)
Pottawattamie County 7 Urban 13.3 (10.2, 17.2) 28 (8, 38) 13 rising rising trend 3.5 (1.7, 6.1)
Benton County 7 Urban 24.0 (16.1, 34.4) 2 (1, 29) 7
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Bremer County 7 Urban 13.2 (7.6, 21.4) 29 (3, 39) 4
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Buchanan County 7 Rural 15.0 (8.8, 24.0) 18 (1, 39) 4
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Carroll County 7 Rural 16.9 (9.7, 27.2) 13 (1, 39) 4
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Cass County 7 Rural 24.0 (13.2, 39.9) 1 (1, 38) 3
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Cerro Gordo County 7 Rural 15.5 (10.6, 21.8) 16 (3, 38) 8
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Clay County 7 Rural 20.0 (11.8, 31.9) 5 (1, 39) 4
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Crawford County 7 Rural 17.2 (9.5, 28.7) 12 (1, 39) 3
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Delaware County 7 Rural 22.5 (13.5, 35.1) 3 (1, 37) 4
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Fayette County 7 Rural 13.4 (7.2, 22.8) 27 (2, 39) 3
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Floyd County 7 Rural 21.1 (11.9, 34.3) 4 (1, 38) 4
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Henry County 7 Rural 15.5 (8.6, 25.5) 17 (1, 39) 3
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Iowa County 7 Rural 19.2 (10.8, 31.5) 7 (1, 39) 3
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Jackson County 7 Rural 18.2 (10.5, 29.3) 10 (1, 39) 4
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Jones County 7 Urban 17.6 (10.6, 27.7) 11 (1, 39) 4
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Lee County 7 Rural 13.2 (8.2, 20.0) 30 (4, 39) 5
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Marshall County 7 Rural 8.7 (5.0, 14.0) 39 (17, 39) 3
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Muscatine County 7 Rural 14.3 (9.6, 20.4) 22 (4, 39) 6
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Plymouth County 7 Rural 18.5 (11.5, 28.0) 8 (1, 38) 5
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Sioux County 7 Rural 18.2 (12.2, 26.0) 9 (1, 37) 6
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Wapello County 7 Rural 13.6 (8.8, 20.2) 26 (4, 39) 5
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Washington County 7 Urban 19.5 (12.1, 29.7) 6 (1, 38) 5
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Webster County 7 Rural 11.9 (7.4, 18.1) 35 (6, 39) 5
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Winneshiek County 7 Rural 13.8 (7.7, 23.1) 25 (2, 39) 4
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Adair County 7 Rural
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3 or fewer
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Adams County 7 Rural
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3 or fewer
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*
Allamakee County 7 Rural
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3 or fewer
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Appanoose County 7 Rural
*
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3 or fewer
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Audubon County 7 Rural
*
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3 or fewer
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Boone County 7 Urban
*
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3 or fewer
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*
Buena Vista County 7 Rural
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3 or fewer
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Butler County 7 Rural
*
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3 or fewer
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Calhoun County 7 Rural
*
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3 or fewer
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Cedar County 7 Rural
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3 or fewer
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Cherokee County 7 Rural
*
*
3 or fewer
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*
Chickasaw County 7 Rural
*
*
3 or fewer
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*
Clarke County 7 Rural
*
*
3 or fewer
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*
Clayton County 7 Rural
*
*
3 or fewer
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Davis County 7 Rural
*
*
3 or fewer
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Decatur County 7 Rural
*
*
3 or fewer
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Dickinson County 7 Rural
*
*
3 or fewer
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*
Emmet County 7 Rural
*
*
3 or fewer
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*
Franklin County 7 Rural
*
*
3 or fewer
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*
Fremont County 7 Rural
*
*
3 or fewer
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Greene County 7 Rural
*
*
3 or fewer
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Grundy County 7 Urban
*
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3 or fewer
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Guthrie County 7 Urban
*
*
3 or fewer
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Hamilton County 7 Rural
*
*
3 or fewer
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Hancock County 7 Rural
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*
3 or fewer
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Hardin County 7 Rural
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*
3 or fewer
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Harrison County 7 Urban
*
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3 or fewer
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Howard County 7 Rural
*
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3 or fewer
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*
Humboldt County 7 Rural
*
*
3 or fewer
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Ida County 7 Rural
*
*
3 or fewer
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Jefferson County 7 Rural
*
*
3 or fewer
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*
Keokuk County 7 Rural
*
*
3 or fewer
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*
Kossuth County 7 Rural
*
*
3 or fewer
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*
Louisa County 7 Rural
*
*
3 or fewer
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*
Lucas County 7 Rural
*
*
3 or fewer
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*
Lyon County 7 Rural
*
*
3 or fewer
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*
Madison County 7 Urban
*
*
3 or fewer
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Mahaska County 7 Rural
*
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3 or fewer
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Mills County 7 Urban
*
*
3 or fewer
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Mitchell County 7 Rural
*
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3 or fewer
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Monona County 7 Rural
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3 or fewer
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Monroe County 7 Rural
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3 or fewer
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Montgomery County 7 Rural
*
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3 or fewer
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O'Brien County 7 Rural
*
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3 or fewer
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Osceola County 7 Rural
*
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3 or fewer
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Page County 7 Rural
*
*
3 or fewer
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Palo Alto County 7 Rural
*
*
3 or fewer
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*
Pocahontas County 7 Rural
*
*
3 or fewer
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*
Poweshiek County 7 Rural
*
*
3 or fewer
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*
Ringgold County 7 Rural
*
*
3 or fewer
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Sac County 7 Rural
*
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3 or fewer
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Shelby County 7 Rural
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3 or fewer
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Tama County 7 Rural
*
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3 or fewer
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Taylor County 7 Rural
*
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3 or fewer
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Union County 7 Rural
*
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3 or fewer
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Van Buren County 7 Rural
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3 or fewer
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Wayne County 7 Rural
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3 or fewer
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Winnebago County 7 Rural
*
*
3 or fewer
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Worth County 7 Rural
*
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3 or fewer
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Wright County 7 Rural
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*
3 or fewer
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*

Notes:
Created by statecancerprofiles.cancer.gov on 03/17/2026 8:43 pm.

State Cancer Registries may provide more current or more local data.

Trend
Rising when 95% confidence interval of average annual percent change is above 0.
Stable when 95% confidence interval of average annual percent change includes 0.
Falling when 95% confidence interval of average annual percent change is below 0.


† Incidence rates (cases per 100,000 population per year) are age-adjusted to the 2000 US standard population (SEER areas use 20 age groups and NPCR areas use 19 age groups). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Rates calculated using SEER*Stat. Population counts for denominators are based on Census populations as modified by NCI. The US Population Data File is used for SEER and NPCR incidence rates.

‡ Incidence data come from different sources. The Average Annual Percent Change (AAPC) is based on the APCs calculated by Joinpoint. Due to data availability issues, the time period used in the calculation of the joinpoint regression model may differ for selected counties.

Rates and trends are computed using different standards for malignancy. For more information see malignant.html.

^ All Stages refers to any stage. Due to changes in stage coding, Combined Summary Stage with Expanded Regional Codes (2004+) is used for data from Surveillance, Epidemiology, and End Results (SEER) databases and Merged Summary Stage is used for data from National Program of Cancer Registries databases. Due to the increased complexity with staging, other staging variables maybe used if necessary.

⋔ Results presented with the CI*Rank statistics help show the usefulness of ranks. For example, ranks for relatively rare diseases or less populated areas may be essentially meaningless because of their large variability, but ranks for more common diseases in densely populated regions can be very useful. The rates used in CI*Rank are all age-adjusted to the 2000 US standard population using 19 age groups for SEER and NPCR areas. More information about methodology can be found on the CI*Rank website.

When displaying county information, the CI*Rank for the state is not shown because it's not comparable. To see the state CI*Rank please view the statistics at the US By State level.

Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.

1 Source: National Program of Cancer Registries and Surveillance, Epidemiology, and End Results SEER*Stat Database - United States Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute. Based on the 2024 submission.

7 Source: SEER November 2024 submission.

* Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 records were reported in a specific area-sex-race category.

Data for United States does not include Puerto Rico.

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