Incidence Rates Table
Incidence Rate Report for Iowa by County
Colon & Rectum (Late Stage^), 2018-2022
All Races (includes Hispanic), Both Sexes, All Ages
Sorted by Percentlate
County
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2023 Rural-Urban Continuum Codes Φ
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Age-Adjusted Incidence Rate † cases per 100,000 (95% Confidence Interval)
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CI*Rank ⋔ (95% Confidence Interval)
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Average Annual Count
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Percent of Cases with Late Stage
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|---|---|---|---|---|---|
| Iowa 7 | N/A | 23.3 (22.6, 24.0) | N/A | 901 | 57.3 |
| US (SEER+NPCR) 1 | N/A | 22.0 (21.9, 22.1) | N/A | 86,932 | 59.9 |
| Hancock County 7 | Rural | 23.2 (12.6, 39.3) | 48 (2, 81) | 3 | 44.4 |
| O'Brien County 7 | Rural | 24.0 (14.0, 38.5) | 43 (2, 81) | 4 | 44.4 |
| Boone County 7 | Urban | 17.9 (11.9, 26.0) | 78 (21, 81) | 6 | 45.5 |
| Madison County 7 | Urban | 22.1 (13.8, 34.0) | 55 (5, 81) | 4 | 45.8 |
| Jackson County 7 | Rural | 21.1 (13.8, 31.2) | 62 (6, 81) | 6 | 46.2 |
| Wright County 7 | Rural | 20.9 (12.6, 33.4) | 63 (5, 81) | 4 | 46.8 |
| Iowa County 7 | Rural | 21.0 (12.9, 32.6) | 65 (6, 81) | 5 | 46.9 |
| Sac County 7 | Rural | 34.0 (20.2, 54.0) | 7 (1, 80) | 5 | 47.9 |
| Tama County 7 | Rural | 25.4 (16.5, 37.6) | 35 (3, 81) | 6 | 50.9 |
| Chickasaw County 7 | Rural | 22.3 (12.9, 36.3) | 49 (2, 81) | 4 | 51.3 |
| Guthrie County 7 | Urban | 26.6 (15.5, 43.2) | 32 (1, 81) | 4 | 51.3 |
| Woodbury County 7 | Urban | 25.3 (21.3, 29.8) | 39 (12, 67) | 30 | 51.4 |
| Grundy County 7 | Urban | 16.9 (9.7, 28.3) | 79 (13, 81) | 3 | 51.5 |
| Dubuque County 7 | Urban | 21.7 (17.9, 26.1) | 57 (23, 77) | 26 | 51.6 |
| Mahaska County 7 | Rural | 23.8 (15.8, 34.4) | 44 (3, 81) | 6 | 51.7 |
| Appanoose County 7 | Rural | 22.2 (14.3, 34.1) | 53 (6, 81) | 5 | 52.1 |
| Floyd County 7 | Rural | 21.8 (13.7, 33.3) | 56 (5, 81) | 5 | 52.1 |
| Winneshiek County 7 | Rural | 18.2 (11.1, 28.5) | 76 (11, 81) | 5 | 52.1 |
| Clay County 7 | Rural | 20.0 (12.9, 30.3) | 69 (11, 81) | 5 | 52.9 |
| Jasper County 7 | Urban | 23.4 (17.7, 30.5) | 46 (10, 80) | 12 | 53.1 |
| Greene County 7 | Rural | 39.2 (24.1, 60.8) | 2 (1, 77) | 5 | 53.2 |
| Warren County 7 | Urban | 18.4 (13.8, 24.0) | 75 (31, 81) | 11 | 53.3 |
| Jones County 7 | Urban | 21.3 (14.2, 31.1) | 60 (8, 81) | 6 | 53.4 |
| Plymouth County 7 | Rural | 26.2 (18.7, 35.8) | 33 (4, 78) | 9 | 53.7 |
| Cerro Gordo County 7 | Rural | 18.9 (14.0, 25.0) | 74 (26, 81) | 12 | 54.1 |
| Dallas County 7 | Urban | 17.0 (13.5, 21.1) | 80 (43, 81) | 17 | 54.2 |
| Mitchell County 7 | Rural | 34.5 (21.3, 53.3) | 6 (1, 80) | 5 | 54.3 |
| Marshall County 7 | Rural | 22.7 (17.1, 29.6) | 50 (13, 80) | 12 | 54.6 |
| Dickinson County 7 | Rural | 19.4 (11.9, 30.2) | 73 (10, 81) | 5 | 55.1 |
| Humboldt County 7 | Rural | 31.8 (18.9, 50.7) | 11 (1, 81) | 4 | 55.3 |
| Pottawattamie County 7 | Urban | 21.3 (17.7, 25.6) | 61 (26, 78) | 26 | 55.4 |
| Monona County 7 | Rural | 26.0 (15.5, 42.4) | 34 (1, 81) | 4 | 55.6 |
| Shelby County 7 | Rural | 19.7 (11.7, 32.2) | 71 (7, 81) | 4 | 55.6 |
| Washington County 7 | Urban | 20.6 (13.6, 30.1) | 66 (10, 81) | 6 | 55.6 |
| Muscatine County 7 | Rural | 25.3 (19.4, 32.5) | 37 (7, 78) | 13 | 55.8 |
| Des Moines County 7 | Rural | 24.7 (18.6, 32.2) | 41 (7, 79) | 12 | 55.9 |
| Hamilton County 7 | Rural | 18.0 (10.6, 29.1) | 77 (14, 81) | 4 | 55.9 |
| Kossuth County 7 | Rural | 16.8 (9.6, 27.7) | 81 (15, 81) | 4 | 56.8 |
| Story County 7 | Urban | 20.0 (15.9, 24.8) | 70 (27, 80) | 18 | 56.8 |
| Webster County 7 | Rural | 27.0 (20.5, 35.0) | 30 (4, 77) | 13 | 57.3 |
| Carroll County 7 | Rural | 24.9 (16.8, 35.8) | 40 (3, 81) | 7 | 57.4 |
| Fayette County 7 | Rural | 22.4 (15.3, 32.2) | 52 (6, 81) | 7 | 57.4 |
| Linn County 7 | Urban | 19.8 (17.4, 22.4) | 72 (41, 78) | 53 | 57.4 |
| Emmet County 7 | Rural | 35.4 (22.4, 54.3) | 4 (1, 78) | 5 | 57.8 |
| Butler County 7 | Rural | 30.4 (19.8, 45.1) | 18 (1, 79) | 6 | 58.0 |
| Clayton County 7 | Rural | 20.9 (14.1, 30.7) | 64 (10, 81) | 6 | 58.2 |
| Mills County 7 | Urban | 28.2 (18.4, 41.8) | 23 (1, 80) | 6 | 58.3 |
| Page County 7 | Rural | 25.7 (16.7, 38.3) | 36 (3, 81) | 6 | 58.3 |
| Scott County 7 | Urban | 21.4 (18.6, 24.5) | 59 (30, 76) | 44 | 58.6 |
| Allamakee County 7 | Rural | 27.6 (17.7, 41.6) | 25 (1, 81) | 5 | 58.7 |
| Johnson County 7 | Urban | 20.5 (17.2, 24.2) | 68 (32, 79) | 29 | 58.7 |
| Cass County 7 | Rural | 35.9 (24.1, 51.9) | 3 (1, 73) | 7 | 58.9 |
| Black Hawk County 7 | Urban | 20.5 (17.3, 24.2) | 67 (32, 79) | 31 | 59.2 |
| Polk County 7 | Urban | 22.1 (20.2, 24.0) | 54 (34, 69) | 111 | 59.4 |
| Benton County 7 | Urban | 27.5 (19.6, 37.8) | 26 (2, 78) | 9 | 59.7 |
| Wapello County 7 | Rural | 23.7 (17.5, 31.5) | 45 (8, 79) | 10 | 59.8 |
| Buena Vista County 7 | Rural | 33.7 (23.3, 47.1) | 8 (1, 74) | 7 | 60.0 |
| Poweshiek County 7 | Rural | 27.3 (18.8, 38.7) | 29 (2, 79) | 7 | 60.0 |
| Marion County 7 | Rural | 28.2 (21.4, 36.5) | 24 (3, 74) | 13 | 61.2 |
| Lyon County 7 | Rural | 25.3 (14.9, 40.3) | 38 (1, 81) | 4 | 61.3 |
| Hardin County 7 | Rural | 22.7 (14.4, 34.3) | 51 (5, 81) | 6 | 62.2 |
| Delaware County 7 | Rural | 21.8 (14.2, 32.5) | 58 (6, 81) | 6 | 63.0 |
| Crawford County 7 | Rural | 31.1 (21.1, 44.4) | 15 (1, 77) | 7 | 63.5 |
| Cedar County 7 | Rural | 24.6 (15.9, 36.4) | 42 (3, 81) | 6 | 63.6 |
| Henry County 7 | Rural | 27.5 (19.1, 38.6) | 27 (2, 79) | 7 | 63.8 |
| Montgomery County 7 | Rural | 23.5 (13.5, 38.8) | 47 (2, 81) | 4 | 64.3 |
| Clinton County 7 | Rural | 31.4 (25.2, 38.8) | 13 (2, 53) | 19 | 64.4 |
| Sioux County 7 | Rural | 31.0 (23.3, 40.3) | 16 (2, 69) | 12 | 64.9 |
| Harrison County 7 | Urban | 29.2 (19.0, 43.2) | 20 (1, 80) | 6 | 65.1 |
| Cherokee County 7 | Rural | 31.1 (20.5, 46.1) | 14 (1, 79) | 6 | 65.3 |
| Calhoun County 7 | Rural | 26.8 (16.0, 43.1) | 31 (1, 81) | 4 | 65.6 |
| Bremer County 7 | Urban | 30.0 (21.4, 41.0) | 19 (1, 76) | 9 | 66.7 |
| Van Buren County 7 | Rural | 28.7 (16.2, 48.5) | 22 (1, 81) | 3 | 66.7 |
| Monroe County 7 | Rural | 46.8 (30.3, 70.3) | 1 (1, 57) | 5 | 68.4 |
| Louisa County 7 | Rural | 27.0 (16.8, 42.2) | 28 (1, 81) | 4 | 68.8 |
| Buchanan County 7 | Rural | 28.8 (19.7, 40.8) | 21 (1, 78) | 7 | 70.8 |
| Lee County 7 | Rural | 32.1 (24.8, 40.9) | 10 (1, 57) | 15 | 72.5 |
| Jefferson County 7 | Rural | 30.5 (20.9, 43.6) | 17 (1, 75) | 8 | 75.0 |
| Union County 7 | Rural | 33.1 (21.3, 49.5) | 9 (1, 78) | 5 | 79.4 |
| Keokuk County 7 | Rural | 34.4 (21.5, 52.8) | 5 (1, 79) | 5 | 80.6 |
| Pocahontas County 7 | Rural | 31.7 (18.1, 53.0) | 12 (1, 81) | 4 | 86.4 |
| Adair County 7 | Rural |
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| Adams County 7 | Rural |
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| Audubon County 7 | Rural |
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| Clarke County 7 | Rural |
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| Davis County 7 | Rural |
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| Decatur County 7 | Rural |
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| Franklin County 7 | Rural |
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| Fremont County 7 | Rural |
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| Howard County 7 | Rural |
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| Ida County 7 | Rural |
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| Lucas County 7 | Rural |
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| Osceola County 7 | Rural |
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| Palo Alto County 7 | Rural |
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| Ringgold County 7 | Rural |
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| Taylor County 7 | Rural |
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| Wayne County 7 | Rural |
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| Winnebago County 7 | Rural |
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| Worth County 7 | Rural |
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Notes:
Created by statecancerprofiles.cancer.gov on 03/25/2026 11:54 pm.
State Cancer Registries may provide more current or more local data.
† 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.
Rates are computed using cancers classified as malignant based on ICD-O-3. For more information see malignant.html.
^ Late Stage is defined as cases determined to be regional or distant. 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.
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.
Source: SEER and NPCR data. For more specific information please see the table.
* 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.