Incidence Rates Table
Incidence Rate Report for Iowa by County
Colon & Rectum (All Stages^), 2017-2021
All Races (includes Hispanic), Both Sexes, All Ages
Sorted by CI*Rank
County
|
2023 Rural-Urban Continuum Codes Φ
|
Age-Adjusted Incidence Rate † cases per 100,000 (95% Confidence Interval)
|
CI*Rank ⋔ (95% Confidence Interval) 
|
Average Annual Count
|
Recent Trend |
Recent 5-Year Trend ‡ in Incidence Rates (95% Confidence Interval)
|
|---|---|---|---|---|---|---|
| Iowa 7 | N/A | 39.9 (39.0, 40.8) | N/A | 1,561 |
stable 
|
-1.5 (-2.2, 0.2) |
| US (SEER+NPCR) 1 | N/A | 36.4 (36.3, 36.4) | N/A | 140,088 |
falling 
|
-1.1 (-1.3, -0.9) |
| Palo Alto County 7 | Rural | 25.5 (14.6, 42.5) | 96 (20, 96) | 4 |
stable
|
-1.8 (-3.9, 0.0) |
| Grundy County 7 | Urban | 29.6 (19.7, 43.7) | 95 (21, 96) | 6 |
stable
|
-1.2 (-2.8, 0.3) |
| Hamilton County 7 | Rural | 30.3 (20.4, 43.7) | 94 (18, 96) | 7 |
falling
|
-2.0 (-3.6, -0.6) |
| Dallas County 7 | Urban | 31.4 (26.5, 37.0) | 93 (52, 96) | 29 |
stable
|
-0.2 (-3.1, 6.5) |
| Cerro Gordo County 7 | Rural | 31.9 (25.6, 39.3) | 92 (40, 96) | 21 |
falling
|
-1.6 (-3.0, -0.4) |
| Cedar County 7 | Rural | 32.8 (22.9, 45.8) | 91 (15, 96) | 8 |
falling
|
-2.8 (-4.7, -1.7) |
| Dickinson County 7 | Rural | 33.1 (22.9, 46.7) | 90 (13, 96) | 9 |
falling
|
-1.7 (-3.3, -0.2) |
| Kossuth County 7 | Rural | 33.2 (22.4, 47.8) | 89 (11, 96) | 8 |
falling
|
-2.1 (-3.6, -0.8) |
| Linn County 7 | Urban | 33.5 (30.4, 36.8) | 88 (56, 93) | 90 |
falling
|
-3.1 (-4.9, -2.5) |
| Adair County 7 | Rural | 33.6 (20.6, 53.6) | 87 (5, 96) | 4 |
|
|
| Warren County 7 | Urban | 33.7 (27.4, 41.1) | 86 (32, 96) | 21 |
stable
|
-1.3 (-2.5, 0.0) |
| Scott County 7 | Urban | 35.0 (31.4, 38.9) | 85 (47, 92) | 72 |
falling
|
-2.7 (-3.5, -1.8) |
| Johnson County 7 | Urban | 35.5 (31.0, 40.3) | 84 (41, 93) | 49 |
falling
|
-1.9 (-2.6, -1.1) |
| Washington County 7 | Urban | 35.6 (26.1, 47.6) | 83 (11, 96) | 10 |
falling
|
-3.0 (-4.8, -1.5) |
| Jefferson County 7 | Rural | 35.7 (25.4, 49.5) | 82 (9, 96) | 9 |
falling
|
-2.5 (-3.9, -1.2) |
| Shelby County 7 | Rural | 36.1 (25.1, 51.5) | 81 (8, 96) | 7 |
falling
|
-1.9 (-3.8, -0.1) |
| Story County 7 | Urban | 36.6 (30.9, 42.9) | 80 (29, 93) | 32 |
falling
|
-1.8 (-2.8, -0.8) |
| Louisa County 7 | Rural | 36.6 (24.3, 53.7) | 79 (6, 96) | 6 |
falling
|
-2.3 (-4.1, -0.7) |
| Delaware County 7 | Rural | 36.7 (26.5, 49.9) | 78 (9, 96) | 10 |
falling
|
-2.0 (-4.0, -0.2) |
| Hardin County 7 | Rural | 36.7 (26.3, 50.3) | 77 (8, 96) | 10 |
falling
|
-1.6 (-3.2, -0.3) |
| Lucas County 7 | Rural | 37.1 (23.1, 57.6) | 76 (3, 96) | 5 |
falling
|
-7.8 (-56.3, -1.4) |
| Floyd County 7 | Rural | 37.6 (27.0, 51.6) | 75 (6, 96) | 9 |
stable
|
-1.5 (-3.5, 0.2) |
| Clarke County 7 | Rural | 37.7 (23.5, 57.8) | 74 (2, 96) | 5 |
|
|
| Crawford County 7 | Rural | 37.8 (27.0, 51.8) | 73 (7, 96) | 8 |
falling
|
-1.9 (-3.5, -0.4) |
| Black Hawk County 7 | Urban | 37.9 (33.4, 42.7) | 72 (29, 90) | 57 |
falling
|
-2.1 (-3.0, -1.3) |
| Des Moines County 7 | Rural | 38.1 (30.7, 46.9) | 71 (15, 95) | 20 |
falling
|
-2.7 (-3.6, -1.8) |
| Polk County 7 | Urban | 38.4 (36.0, 41.0) | 70 (40, 80) | 192 |
falling
|
-1.7 (-2.2, -1.2) |
| Wapello County 7 | Rural | 38.5 (30.4, 48.1) | 69 (12, 95) | 17 |
falling
|
-1.9 (-3.0, -0.9) |
| Dubuque County 7 | Urban | 38.6 (33.5, 44.2) | 68 (24, 89) | 46 |
falling
|
-2.5 (-3.7, -1.3) |
| Ida County 7 | Rural | 38.6 (23.8, 60.9) | 67 (2, 96) | 5 |
falling
|
-2.1 (-4.2, -0.2) |
| Appanoose County 7 | Rural | 38.7 (27.2, 54.4) | 66 (4, 96) | 8 |
falling
|
-2.6 (-4.0, -1.4) |
| Wright County 7 | Rural | 39.0 (26.8, 55.2) | 65 (3, 96) | 8 |
falling
|
-2.8 (-4.2, -1.6) |
| Carroll County 7 | Rural | 39.1 (29.3, 51.3) | 64 (7, 96) | 12 |
falling
|
-2.7 (-4.1, -1.4) |
| Page County 7 | Rural | 39.1 (28.0, 53.7) | 63 (5, 96) | 9 |
falling
|
-6.2 (-14.5, -3.1) |
| Henry County 7 | Rural | 39.4 (29.3, 52.2) | 62 (6, 95) | 11 |
stable
|
-0.9 (-2.0, 0.3) |
| Benton County 7 | Urban | 39.5 (29.9, 51.4) | 61 (7, 95) | 13 |
falling
|
-2.6 (-4.2, -1.3) |
| Winnebago County 7 | Rural | 39.6 (25.9, 58.6) | 60 (2, 96) | 6 |
stable
|
-1.4 (-3.4, 0.5) |
| Clay County 7 | Rural | 39.8 (29.5, 53.0) | 59 (5, 96) | 11 |
falling
|
-2.3 (-3.6, -1.1) |
| Jones County 7 | Urban | 39.9 (29.9, 52.4) | 58 (6, 96) | 12 |
falling
|
-2.5 (-4.1, -0.9) |
| Bremer County 7 | Urban | 39.9 (30.1, 52.1) | 57 (6, 96) | 12 |
falling
|
-2.7 (-4.2, -1.2) |
| Winneshiek County 7 | Rural | 40.6 (29.6, 54.6) | 56 (5, 95) | 11 |
falling
|
-3.1 (-14.1, -1.9) |
| Clayton County 7 | Rural | 41.3 (31.0, 54.5) | 55 (5, 95) | 12 |
falling
|
-2.0 (-3.8, -0.2) |
| Calhoun County 7 | Rural | 41.4 (27.2, 61.3) | 54 (2, 96) | 6 |
falling
|
-1.6 (-3.5, -0.1) |
| Fayette County 7 | Rural | 41.5 (31.3, 54.3) | 53 (5, 95) | 13 |
falling
|
-1.1 (-1.9, -0.3) |
| Pottawattamie County 7 | Urban | 41.6 (36.4, 47.5) | 52 (16, 83) | 48 |
falling
|
-12.8 (-20.5, -8.2) |
| Franklin County 7 | Rural | 41.7 (27.5, 61.4) | 51 (1, 96) | 6 |
stable
|
-1.8 (-4.2, 0.3) |
| Jasper County 7 | Urban | 42.0 (34.2, 51.2) | 50 (8, 92) | 22 |
falling
|
-1.5 (-2.3, -0.7) |
| Worth County 7 | Rural | 42.0 (26.8, 64.4) | 49 (1, 96) | 5 |
stable
|
-0.2 (-2.7, 2.2) |
| Chickasaw County 7 | Rural | 42.1 (29.1, 59.5) | 48 (2, 96) | 7 |
stable
|
-1.3 (-3.3, 0.6) |
| Pocahontas County 7 | Rural | 42.1 (25.5, 66.6) | 47 (1, 96) | 5 |
stable
|
-1.6 (-3.7, 0.1) |
| Howard County 7 | Rural | 42.1 (26.9, 63.4) | 46 (1, 96) | 6 |
falling
|
-2.5 (-4.3, -1.0) |
| Poweshiek County 7 | Rural | 42.2 (31.9, 55.4) | 45 (5, 94) | 12 |
falling
|
-3.1 (-4.8, -1.6) |
| Cherokee County 7 | Rural | 42.3 (29.8, 59.3) | 44 (2, 96) | 8 |
stable
|
-1.5 (-3.4, 0.2) |
| Sioux County 7 | Rural | 42.6 (33.8, 53.0) | 43 (6, 93) | 18 |
falling
|
-2.7 (-4.2, -1.3) |
| Hancock County 7 | Rural | 42.6 (28.9, 61.5) | 42 (2, 96) | 7 |
stable
|
-0.8 (-2.6, 0.9) |
| Iowa County 7 | Rural | 42.8 (30.9, 58.0) | 41 (2, 95) | 9 |
stable
|
-1.0 (-3.0, 0.9) |
| Marshall County 7 | Rural | 43.0 (35.2, 52.2) | 40 (7, 90) | 22 |
falling
|
-1.5 (-2.6, -0.5) |
| Muscatine County 7 | Rural | 43.6 (35.9, 52.5) | 39 (7, 88) | 24 |
falling
|
-1.5 (-3.0, -0.1) |
| Audubon County 7 | Rural | 43.9 (25.6, 72.3) | 38 (1, 96) | 4 |
falling
|
-5.9 (-26.6, -2.5) |
| Harrison County 7 | Urban | 44.0 (31.6, 60.1) | 37 (2, 95) | 9 |
stable
|
-1.6 (-3.3, 0.1) |
| Boone County 7 | Urban | 44.1 (34.4, 55.9) | 36 (4, 93) | 15 |
falling
|
-1.6 (-3.2, -0.2) |
| Jackson County 7 | Rural | 44.2 (33.4, 57.9) | 35 (3, 94) | 13 |
falling
|
-2.3 (-8.7, -1.2) |
| O'Brien County 7 | Rural | 44.3 (30.9, 61.9) | 34 (1, 96) | 8 |
falling
|
-2.0 (-4.0, -0.4) |
| Ringgold County 7 | Rural | 44.7 (25.2, 75.9) | 33 (1, 96) | 4 |
|
|
| Guthrie County 7 | Urban | 45.1 (30.5, 65.1) | 32 (1, 96) | 7 |
falling
|
-1.7 (-3.5, -0.1) |
| Plymouth County 7 | Rural | 45.2 (35.4, 57.1) | 31 (3, 90) | 16 |
falling
|
-2.8 (-3.9, -1.8) |
| Lee County 7 | Rural | 45.3 (36.7, 55.5) | 30 (5, 87) | 21 |
falling
|
-1.6 (-2.4, -0.7) |
| Butler County 7 | Rural | 45.3 (32.8, 61.6) | 29 (2, 95) | 10 |
falling
|
-1.6 (-3.2, -0.2) |
| Allamakee County 7 | Rural | 45.4 (32.6, 62.0) | 28 (2, 95) | 9 |
stable
|
-1.7 (-3.9, 0.3) |
| Buchanan County 7 | Rural | 45.5 (34.1, 59.7) | 27 (2, 94) | 11 |
stable
|
-1.2 (-3.4, 0.8) |
| Van Buren County 7 | Rural | 45.5 (29.4, 69.0) | 26 (1, 96) | 5 |
|
|
| Webster County 7 | Rural | 46.3 (37.8, 56.2) | 25 (4, 86) | 23 |
falling
|
-2.8 (-3.9, -1.9) |
| Marion County 7 | Rural | 46.6 (37.7, 57.1) | 24 (4, 85) | 20 |
stable
|
-0.4 (-1.3, 0.5) |
| Woodbury County 7 | Urban | 46.9 (41.4, 52.9) | 23 (7, 65) | 56 |
falling
|
-1.1 (-2.1, -0.3) |
| Lyon County 7 | Rural | 47.1 (32.2, 66.7) | 22 (1, 96) | 7 |
stable
|
-1.2 (-2.8, 0.2) |
| Clinton County 7 | Rural | 47.3 (39.6, 56.2) | 21 (4, 76) | 29 |
falling
|
-1.7 (-2.6, -0.9) |
| Fremont County 7 | Rural | 47.4 (29.6, 73.5) | 20 (1, 96) | 5 |
|
|
| Montgomery County 7 | Rural | 47.4 (32.6, 67.6) | 19 (1, 95) | 7 |
stable
|
-1.7 (-3.7, 0.0) |
| Union County 7 | Rural | 47.6 (33.3, 66.3) | 18 (1, 95) | 8 |
stable
|
-1.0 (-2.4, 0.4) |
| Mills County 7 | Urban | 47.7 (34.5, 64.7) | 17 (1, 94) | 9 |
falling
|
-2.0 (-3.7, -0.3) |
| Tama County 7 | Rural | 48.1 (36.0, 63.3) | 16 (1, 94) | 12 |
stable
|
-1.2 (-2.7, 0.1) |
| Greene County 7 | Rural | 48.3 (32.6, 70.1) | 15 (1, 95) | 7 |
stable
|
-0.2 (-2.0, 1.5) |
| Mahaska County 7 | Rural | 48.4 (36.8, 62.6) | 14 (2, 90) | 13 |
stable
|
-0.9 (-2.3, 0.4) |
| Osceola County 7 | Rural | 49.9 (30.9, 77.9) | 13 (1, 96) | 5 |
stable
|
-0.2 (-2.7, 2.3) |
| Buena Vista County 7 | Rural | 50.5 (38.0, 65.9) | 12 (1, 89) | 12 |
falling
|
-2.3 (-4.2, -0.8) |
| Monona County 7 | Rural | 51.1 (34.9, 73.5) | 11 (1, 95) | 7 |
falling
|
-1.6 (-3.3, -0.1) |
| Decatur County 7 | Rural | 52.2 (32.9, 79.2) | 10 (1, 96) | 5 |
stable
|
-1.2 (-3.5, 0.9) |
| Cass County 7 | Rural | 53.1 (38.7, 71.7) | 9 (1, 88) | 10 |
stable
|
0.2 (-1.4, 1.8) |
| Keokuk County 7 | Rural | 53.6 (36.4, 76.6) | 8 (1, 94) | 7 |
stable
|
-1.2 (-3.3, 0.8) |
| Humboldt County 7 | Rural | 53.8 (36.9, 76.5) | 7 (1, 93) | 7 |
stable
|
-1.8 (-4.3, 0.4) |
| Madison County 7 | Urban | 53.9 (40.2, 70.9) | 6 (1, 88) | 11 |
stable
|
-0.8 (-2.3, 0.8) |
| Davis County 7 | Rural | 56.4 (37.3, 82.0) | 5 (1, 93) | 6 |
stable
|
-0.7 (-2.6, 1.0) |
| Emmet County 7 | Rural | 57.2 (40.7, 79.3) | 4 (1, 88) | 9 |
stable
|
-0.3 (-1.7, 1.0) |
| Mitchell County 7 | Rural | 59.1 (41.2, 82.4) | 3 (1, 86) | 9 |
stable
|
-1.3 (-3.7, 0.8) |
| Monroe County 7 | Rural | 67.8 (48.0, 94.4) | 2 (1, 74) | 8 |
stable
|
0.9 (-1.5, 3.5) |
| Sac County 7 | Rural | 67.9 (48.3, 93.3) | 1 (1, 68) | 10 |
stable
|
-0.5 (-2.8, 1.5) |
| Adams County 7 | Rural |
|
|
|
|
|
| Taylor County 7 | Rural |
|
|
|
|
|
| Wayne County 7 | Rural |
|
|
|
|
|
Notes:
Created by statecancerprofiles.cancer.gov on 07/08/2025 6:16 am.
State Cancer Registries may provide more current or more local data.
Data cannot be shown for the following areas. For more information on what areas are suppressed or not available, please refer to the table.
Adams, Taylor, Wayne
† Incidence rates (cases per 100,000 population per year) are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+). 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 and trends are computed using different standards for malignancy. For more information see malignant.html.
^ All Stages refers to any stage in the Surveillance, Epidemiology, and End Results (SEER) Summary/Historic Combined Summary Stage (2004+).
Φ Rural-Urban Continuum Codes provided by the USDA.
* 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. If an average count of 3 is shown, the total number of cases for the time period is 16 or more which exceeds suppression threshold (but is rounded to 3).
Source: SEER and NPCR data. For more specific information please see the table.
Data for the United States does not include data from Indiana.
Data for the United States does not include Puerto Rico.
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.
Created by statecancerprofiles.cancer.gov on 07/08/2025 6:16 am.
State Cancer Registries may provide more current or more local data.
Data cannot be shown for the following areas. For more information on what areas are suppressed or not available, please refer to the table.
Adams, Taylor, Wayne
† Incidence rates (cases per 100,000 population per year) are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+). 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 and trends are computed using different standards for malignancy. For more information see malignant.html.
^ All Stages refers to any stage in the Surveillance, Epidemiology, and End Results (SEER) Summary/Historic Combined Summary Stage (2004+).
Φ Rural-Urban Continuum Codes provided by the USDA.
* 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. If an average count of 3 is shown, the total number of cases for the time period is 16 or more which exceeds suppression threshold (but is rounded to 3).
Source: SEER and NPCR data. For more specific information please see the table.
Data for the United States does not include data from Indiana.
Data for the United States does not include Puerto Rico.
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.