Incidence Rates Table
Incidence Rate Report for Iowa by County
Colon & Rectum (Late Stage^), 2018-2022
All Races (includes Hispanic), Both Sexes, Ages 50+
Sorted by Rate
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 | 67.3 (65.2, 69.5) | N/A | 784 | 56.6 |
| US (SEER+NPCR) 1 | N/A | 64.3 (64.1, 64.5) | N/A | 75,131 | 59.3 |
| Monroe County 7 | Rural | 169.4 (109.5, 249.9) | 1 (1, 36) | 5 | 70.3 |
| Union County 7 | Rural | 111.2 (71.4, 164.4) | 2 (1, 73) | 5 | 81.3 |
| Cass County 7 | Rural | 107.7 (71.6, 155.1) | 3 (1, 70) | 6 | 57.7 |
| Greene County 7 | Rural | 105.2 (65.1, 161.0) | 4 (1, 76) | 4 | 52.4 |
| Keokuk County 7 | Rural | 104.4 (65.0, 158.6) | 5 (1, 77) | 5 | 82.1 |
| Van Buren County 7 | Rural | 103.7 (58.7, 169.3) | 6 (1, 79) | 3 | 66.7 |
| Pocahontas County 7 | Rural | 99.7 (57.7, 160.8) | 7 (1, 79) | 4 | 85.7 |
| Emmet County 7 | Rural | 98.8 (62.2, 149.9) | 11 (1, 77) | 5 | 54.8 |
| Poweshiek County 7 | Rural | 98.7 (67.9, 138.1) | 9 (1, 69) | 7 | 60.0 |
| Louisa County 7 | Rural | 97.8 (60.6, 149.3) | 8 (1, 78) | 4 | 68.8 |
| Lee County 7 | Rural | 96.2 (74.0, 122.9) | 10 (2, 54) | 13 | 72.0 |
| Cherokee County 7 | Rural | 95.5 (63.8, 138.0) | 12 (1, 74) | 6 | 63.8 |
| Crawford County 7 | Rural | 95.2 (64.0, 136.4) | 13 (1, 75) | 6 | 62.5 |
| Buena Vista County 7 | Rural | 94.6 (63.3, 135.4) | 15 (1, 75) | 6 | 56.6 |
| Monona County 7 | Rural | 94.0 (56.2, 147.5) | 14 (1, 79) | 4 | 58.8 |
| Clinton County 7 | Rural | 92.1 (73.4, 114.1) | 16 (3, 54) | 17 | 64.2 |
| Jefferson County 7 | Rural | 91.9 (63.0, 129.9) | 17 (1, 74) | 7 | 75.0 |
| Mills County 7 | Urban | 89.9 (58.1, 132.9) | 18 (1, 78) | 5 | 59.1 |
| Marion County 7 | Rural | 87.8 (66.4, 113.8) | 19 (2, 67) | 12 | 64.4 |
| Calhoun County 7 | Rural | 86.4 (51.7, 135.5) | 20 (1, 79) | 4 | 66.7 |
| Mitchell County 7 | Rural | 86.1 (52.2, 133.7) | 21 (1, 79) | 4 | 51.2 |
| Humboldt County 7 | Rural | 84.9 (49.4, 135.9) | 22 (1, 79) | 4 | 51.4 |
| Sioux County 7 | Rural | 84.0 (61.9, 111.3) | 23 (3, 74) | 10 | 60.7 |
| Butler County 7 | Rural | 83.7 (53.1, 124.8) | 24 (1, 79) | 5 | 56.8 |
| Henry County 7 | Rural | 82.6 (56.6, 116.5) | 25 (2, 76) | 7 | 62.3 |
| Harrison County 7 | Urban | 82.2 (52.1, 123.1) | 26 (2, 78) | 5 | 61.5 |
| Buchanan County 7 | Rural | 81.6 (54.1, 117.6) | 27 (2, 78) | 6 | 70.7 |
| Page County 7 | Rural | 81.1 (52.2, 119.7) | 30 (2, 79) | 5 | 59.1 |
| Webster County 7 | Rural | 81.1 (61.0, 105.5) | 28 (4, 72) | 11 | 55.3 |
| Appanoose County 7 | Rural | 80.2 (51.7, 119.3) | 29 (2, 79) | 5 | 53.2 |
| Sac County 7 | Rural | 79.3 (46.7, 125.7) | 32 (2, 79) | 4 | 46.3 |
| Woodbury County 7 | Urban | 79.2 (66.1, 94.1) | 31 (9, 61) | 27 | 52.5 |
| Plymouth County 7 | Rural | 76.5 (54.0, 105.2) | 33 (3, 78) | 8 | 51.3 |
| Lyon County 7 | Rural | 76.4 (44.0, 123.0) | 34 (2, 79) | 3 | 63.0 |
| Montgomery County 7 | Rural | 76.2 (43.5, 123.3) | 36 (2, 79) | 3 | 68.0 |
| Clayton County 7 | Rural | 75.8 (51.0, 108.3) | 35 (3, 79) | 6 | 59.3 |
| Madison County 7 | Urban | 75.5 (46.4, 115.6) | 37 (2, 79) | 4 | 48.8 |
| Allamakee County 7 | Rural | 74.7 (46.6, 113.2) | 38 (2, 79) | 5 | 57.5 |
| Muscatine County 7 | Rural | 74.1 (56.1, 96.0) | 39 (7, 75) | 12 | 56.7 |
| Bremer County 7 | Urban | 71.8 (49.2, 101.1) | 40 (4, 79) | 7 | 63.0 |
| Shelby County 7 | Rural | 71.4 (42.5, 112.1) | 41 (3, 79) | 4 | 55.6 |
| Fayette County 7 | Rural | 70.7 (48.5, 99.8) | 43 (5, 79) | 7 | 56.9 |
| Jasper County 7 | Urban | 70.7 (52.9, 92.6) | 42 (9, 77) | 11 | 54.5 |
| Marshall County 7 | Rural | 70.3 (52.6, 92.1) | 44 (9, 77) | 11 | 54.5 |
| Tama County 7 | Rural | 68.7 (44.1, 102.2) | 45 (4, 79) | 5 | 48.1 |
| Wright County 7 | Rural | 68.0 (41.1, 106.3) | 46 (3, 79) | 4 | 46.7 |
| Des Moines County 7 | Rural | 67.9 (50.4, 89.3) | 47 (12, 78) | 11 | 54.6 |
| Wapello County 7 | Rural | 67.6 (49.0, 90.9) | 49 (10, 78) | 9 | 60.0 |
| Delaware County 7 | Rural | 67.2 (43.8, 98.8) | 51 (5, 79) | 5 | 64.3 |
| Clay County 7 | Rural | 66.7 (43.1, 98.9) | 50 (5, 79) | 5 | 52.0 |
| Floyd County 7 | Rural | 66.7 (41.6, 101.1) | 52 (4, 79) | 5 | 51.1 |
| Carroll County 7 | Rural | 66.5 (44.1, 96.2) | 48 (6, 79) | 6 | 53.6 |
| Hardin County 7 | Rural | 64.7 (40.7, 97.3) | 55 (6, 79) | 5 | 62.5 |
| Pottawattamie County 7 | Urban | 64.6 (53.1, 77.9) | 54 (23, 75) | 23 | 55.8 |
| Benton County 7 | Urban | 63.6 (43.5, 89.6) | 56 (11, 79) | 7 | 56.9 |
| Chickasaw County 7 | Rural | 63.1 (36.6, 101.4) | 53 (4, 79) | 4 | 51.4 |
| Guthrie County 7 | Urban | 62.0 (35.1, 101.5) | 59 (5, 79) | 3 | 47.1 |
| Polk County 7 | Urban | 61.7 (56.0, 67.8) | 60 (37, 70) | 90 | 57.3 |
| Jackson County 7 | Rural | 61.7 (40.1, 90.8) | 58 (10, 79) | 5 | 45.0 |
| Scott County 7 | Urban | 61.2 (52.7, 70.8) | 61 (33, 74) | 38 | 58.6 |
| Grundy County 7 | Urban | 61.1 (35.1, 99.1) | 57 (4, 79) | 3 | 53.1 |
| Mahaska County 7 | Rural | 60.7 (38.8, 90.2) | 62 (8, 79) | 5 | 52.1 |
| Jones County 7 | Urban | 59.9 (39.2, 87.7) | 63 (11, 79) | 5 | 51.9 |
| Black Hawk County 7 | Urban | 59.4 (49.6, 70.5) | 64 (31, 77) | 27 | 59.2 |
| Hamilton County 7 | Rural | 59.2 (34.5, 94.3) | 65 (6, 79) | 4 | 56.3 |
| Iowa County 7 | Rural | 58.8 (35.4, 91.6) | 66 (8, 79) | 4 | 47.6 |
| Dubuque County 7 | Urban | 57.8 (47.2, 70.1) | 67 (30, 78) | 22 | 51.4 |
| Story County 7 | Urban | 57.7 (45.2, 72.6) | 69 (28, 79) | 15 | 54.3 |
| Washington County 7 | Urban | 57.5 (37.1, 84.9) | 68 (13, 79) | 5 | 56.5 |
| Johnson County 7 | Urban | 57.1 (47.0, 68.8) | 70 (34, 78) | 23 | 56.7 |
| Cedar County 7 | Rural | 55.4 (33.7, 85.4) | 72 (13, 79) | 4 | 58.3 |
| Linn County 7 | Urban | 55.1 (48.0, 63.0) | 71 (43, 77) | 44 | 56.7 |
| Warren County 7 | Urban | 53.2 (39.2, 70.6) | 73 (32, 79) | 10 | 52.7 |
| Boone County 7 | Urban | 51.9 (33.5, 76.5) | 75 (22, 79) | 5 | 45.6 |
| Cerro Gordo County 7 | Rural | 51.7 (38.4, 68.1) | 76 (34, 79) | 10 | 52.0 |
| Dickinson County 7 | Rural | 51.6 (32.1, 78.5) | 74 (19, 79) | 5 | 53.3 |
| Dallas County 7 | Urban | 46.5 (35.6, 59.7) | 77 (45, 79) | 13 | 51.6 |
| Kossuth County 7 | Rural | 45.5 (27.2, 72.2) | 78 (26, 79) | 4 | 55.9 |
| Winneshiek County 7 | Rural | 43.1 (26.5, 66.6) | 79 (33, 79) | 4 | 50.0 |
| 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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| Hancock 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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| O'Brien 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 03/30/2026 10:33 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.