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 Rate
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) |
| Sac County 7 | Rural | 67.9 (48.3, 93.3) | 1 (1, 68) | 10 |
stable
|
-0.5 (-2.8, 1.5) |
| Monroe County 7 | Rural | 67.8 (48.0, 94.4) | 2 (1, 74) | 8 |
stable
|
0.9 (-1.5, 3.5) |
| Mitchell County 7 | Rural | 59.1 (41.2, 82.4) | 3 (1, 86) | 9 |
stable
|
-1.3 (-3.7, 0.8) |
| Emmet County 7 | Rural | 57.2 (40.7, 79.3) | 4 (1, 88) | 9 |
stable
|
-0.3 (-1.7, 1.0) |
| Davis County 7 | Rural | 56.4 (37.3, 82.0) | 5 (1, 93) | 6 |
stable
|
-0.7 (-2.6, 1.0) |
| Madison County 7 | Urban | 53.9 (40.2, 70.9) | 6 (1, 88) | 11 |
stable
|
-0.8 (-2.3, 0.8) |
| Humboldt County 7 | Rural | 53.8 (36.9, 76.5) | 7 (1, 93) | 7 |
stable
|
-1.8 (-4.3, 0.4) |
| Keokuk County 7 | Rural | 53.6 (36.4, 76.6) | 8 (1, 94) | 7 |
stable
|
-1.2 (-3.3, 0.8) |
| Cass County 7 | Rural | 53.1 (38.7, 71.7) | 9 (1, 88) | 10 |
stable
|
0.2 (-1.4, 1.8) |
| Decatur County 7 | Rural | 52.2 (32.9, 79.2) | 10 (1, 96) | 5 |
stable
|
-1.2 (-3.5, 0.9) |
| Monona County 7 | Rural | 51.1 (34.9, 73.5) | 11 (1, 95) | 7 |
falling
|
-1.6 (-3.3, -0.1) |
| Buena Vista County 7 | Rural | 50.5 (38.0, 65.9) | 12 (1, 89) | 12 |
falling
|
-2.3 (-4.2, -0.8) |
| Osceola County 7 | Rural | 49.9 (30.9, 77.9) | 13 (1, 96) | 5 |
stable
|
-0.2 (-2.7, 2.3) |
| Mahaska County 7 | Rural | 48.4 (36.8, 62.6) | 14 (2, 90) | 13 |
stable
|
-0.9 (-2.3, 0.4) |
| Greene County 7 | Rural | 48.3 (32.6, 70.1) | 15 (1, 95) | 7 |
stable
|
-0.2 (-2.0, 1.5) |
| Tama County 7 | Rural | 48.1 (36.0, 63.3) | 16 (1, 94) | 12 |
stable
|
-1.2 (-2.7, 0.1) |
| Mills County 7 | Urban | 47.7 (34.5, 64.7) | 17 (1, 94) | 9 |
falling
|
-2.0 (-3.7, -0.3) |
| Union County 7 | Rural | 47.6 (33.3, 66.3) | 18 (1, 95) | 8 |
stable
|
-1.0 (-2.4, 0.4) |
| Montgomery County 7 | Rural | 47.4 (32.6, 67.6) | 19 (1, 95) | 7 |
stable
|
-1.7 (-3.7, 0.0) |
| Fremont County 7 | Rural | 47.4 (29.6, 73.5) | 20 (1, 96) | 5 |
|
|
| Clinton County 7 | Rural | 47.3 (39.6, 56.2) | 21 (4, 76) | 29 |
falling
|
-1.7 (-2.6, -0.9) |
| Lyon County 7 | Rural | 47.1 (32.2, 66.7) | 22 (1, 96) | 7 |
stable
|
-1.2 (-2.8, 0.2) |
| Woodbury County 7 | Urban | 46.9 (41.4, 52.9) | 23 (7, 65) | 56 |
falling
|
-1.1 (-2.1, -0.3) |
| Marion County 7 | Rural | 46.6 (37.7, 57.1) | 24 (4, 85) | 20 |
stable
|
-0.4 (-1.3, 0.5) |
| Webster County 7 | Rural | 46.3 (37.8, 56.2) | 25 (4, 86) | 23 |
falling
|
-2.8 (-3.9, -1.9) |
| Van Buren County 7 | Rural | 45.5 (29.4, 69.0) | 26 (1, 96) | 5 |
|
|
| Buchanan County 7 | Rural | 45.5 (34.1, 59.7) | 27 (2, 94) | 11 |
stable
|
-1.2 (-3.4, 0.8) |
| Allamakee County 7 | Rural | 45.4 (32.6, 62.0) | 28 (2, 95) | 9 |
stable
|
-1.7 (-3.9, 0.3) |
| Butler County 7 | Rural | 45.3 (32.8, 61.6) | 29 (2, 95) | 10 |
falling
|
-1.6 (-3.2, -0.2) |
| Lee County 7 | Rural | 45.3 (36.7, 55.5) | 30 (5, 87) | 21 |
falling
|
-1.6 (-2.4, -0.7) |
| Plymouth County 7 | Rural | 45.2 (35.4, 57.1) | 31 (3, 90) | 16 |
falling
|
-2.8 (-3.9, -1.8) |
| Guthrie County 7 | Urban | 45.1 (30.5, 65.1) | 32 (1, 96) | 7 |
falling
|
-1.7 (-3.5, -0.1) |
| Ringgold County 7 | Rural | 44.7 (25.2, 75.9) | 33 (1, 96) | 4 |
|
|
| O'Brien County 7 | Rural | 44.3 (30.9, 61.9) | 34 (1, 96) | 8 |
falling
|
-2.0 (-4.0, -0.4) |
| Jackson County 7 | Rural | 44.2 (33.4, 57.9) | 35 (3, 94) | 13 |
falling
|
-2.3 (-8.7, -1.2) |
| Boone County 7 | Urban | 44.1 (34.4, 55.9) | 36 (4, 93) | 15 |
falling
|
-1.6 (-3.2, -0.2) |
| Harrison County 7 | Urban | 44.0 (31.6, 60.1) | 37 (2, 95) | 9 |
stable
|
-1.6 (-3.3, 0.1) |
| Audubon County 7 | Rural | 43.9 (25.6, 72.3) | 38 (1, 96) | 4 |
falling
|
-5.9 (-26.6, -2.5) |
| Muscatine County 7 | Rural | 43.6 (35.9, 52.5) | 39 (7, 88) | 24 |
falling
|
-1.5 (-3.0, -0.1) |
| Marshall County 7 | Rural | 43.0 (35.2, 52.2) | 40 (7, 90) | 22 |
falling
|
-1.5 (-2.6, -0.5) |
| Iowa County 7 | Rural | 42.8 (30.9, 58.0) | 41 (2, 95) | 9 |
stable
|
-1.0 (-3.0, 0.9) |
| Hancock County 7 | Rural | 42.6 (28.9, 61.5) | 42 (2, 96) | 7 |
stable
|
-0.8 (-2.6, 0.9) |
| Sioux County 7 | Rural | 42.6 (33.8, 53.0) | 43 (6, 93) | 18 |
falling
|
-2.7 (-4.2, -1.3) |
| Cherokee County 7 | Rural | 42.3 (29.8, 59.3) | 44 (2, 96) | 8 |
stable
|
-1.5 (-3.4, 0.2) |
| Poweshiek County 7 | Rural | 42.2 (31.9, 55.4) | 45 (5, 94) | 12 |
falling
|
-3.1 (-4.8, -1.6) |
| Howard County 7 | Rural | 42.1 (26.9, 63.4) | 46 (1, 96) | 6 |
falling
|
-2.5 (-4.3, -1.0) |
| Pocahontas County 7 | Rural | 42.1 (25.5, 66.6) | 47 (1, 96) | 5 |
stable
|
-1.6 (-3.7, 0.1) |
| Chickasaw County 7 | Rural | 42.1 (29.1, 59.5) | 48 (2, 96) | 7 |
stable
|
-1.3 (-3.3, 0.6) |
| Worth County 7 | Rural | 42.0 (26.8, 64.4) | 49 (1, 96) | 5 |
stable
|
-0.2 (-2.7, 2.2) |
| Jasper County 7 | Urban | 42.0 (34.2, 51.2) | 50 (8, 92) | 22 |
falling
|
-1.5 (-2.3, -0.7) |
| Franklin County 7 | Rural | 41.7 (27.5, 61.4) | 51 (1, 96) | 6 |
stable
|
-1.8 (-4.2, 0.3) |
| Pottawattamie County 7 | Urban | 41.6 (36.4, 47.5) | 52 (16, 83) | 48 |
falling
|
-12.8 (-20.5, -8.2) |
| Fayette County 7 | Rural | 41.5 (31.3, 54.3) | 53 (5, 95) | 13 |
falling
|
-1.1 (-1.9, -0.3) |
| Calhoun County 7 | Rural | 41.4 (27.2, 61.3) | 54 (2, 96) | 6 |
falling
|
-1.6 (-3.5, -0.1) |
| Clayton County 7 | Rural | 41.3 (31.0, 54.5) | 55 (5, 95) | 12 |
falling
|
-2.0 (-3.8, -0.2) |
| Winneshiek County 7 | Rural | 40.6 (29.6, 54.6) | 56 (5, 95) | 11 |
falling
|
-3.1 (-14.1, -1.9) |
| Bremer County 7 | Urban | 39.9 (30.1, 52.1) | 57 (6, 96) | 12 |
falling
|
-2.7 (-4.2, -1.2) |
| Jones County 7 | Urban | 39.9 (29.9, 52.4) | 58 (6, 96) | 12 |
falling
|
-2.5 (-4.1, -0.9) |
| Clay County 7 | Rural | 39.8 (29.5, 53.0) | 59 (5, 96) | 11 |
falling
|
-2.3 (-3.6, -1.1) |
| Winnebago County 7 | Rural | 39.6 (25.9, 58.6) | 60 (2, 96) | 6 |
stable
|
-1.4 (-3.4, 0.5) |
| Benton County 7 | Urban | 39.5 (29.9, 51.4) | 61 (7, 95) | 13 |
falling
|
-2.6 (-4.2, -1.3) |
| Henry County 7 | Rural | 39.4 (29.3, 52.2) | 62 (6, 95) | 11 |
stable
|
-0.9 (-2.0, 0.3) |
| Page County 7 | Rural | 39.1 (28.0, 53.7) | 63 (5, 96) | 9 |
falling
|
-6.2 (-14.5, -3.1) |
| Carroll County 7 | Rural | 39.1 (29.3, 51.3) | 64 (7, 96) | 12 |
falling
|
-2.7 (-4.1, -1.4) |
| Wright County 7 | Rural | 39.0 (26.8, 55.2) | 65 (3, 96) | 8 |
falling
|
-2.8 (-4.2, -1.6) |
| Appanoose County 7 | Rural | 38.7 (27.2, 54.4) | 66 (4, 96) | 8 |
falling
|
-2.6 (-4.0, -1.4) |
| Ida County 7 | Rural | 38.6 (23.8, 60.9) | 67 (2, 96) | 5 |
falling
|
-2.1 (-4.2, -0.2) |
| Dubuque County 7 | Urban | 38.6 (33.5, 44.2) | 68 (24, 89) | 46 |
falling
|
-2.5 (-3.7, -1.3) |
| Wapello County 7 | Rural | 38.5 (30.4, 48.1) | 69 (12, 95) | 17 |
falling
|
-1.9 (-3.0, -0.9) |
| Polk County 7 | Urban | 38.4 (36.0, 41.0) | 70 (40, 80) | 192 |
falling
|
-1.7 (-2.2, -1.2) |
| Des Moines County 7 | Rural | 38.1 (30.7, 46.9) | 71 (15, 95) | 20 |
falling
|
-2.7 (-3.6, -1.8) |
| Black Hawk County 7 | Urban | 37.9 (33.4, 42.7) | 72 (29, 90) | 57 |
falling
|
-2.1 (-3.0, -1.3) |
| Crawford County 7 | Rural | 37.8 (27.0, 51.8) | 73 (7, 96) | 8 |
falling
|
-1.9 (-3.5, -0.4) |
| Clarke County 7 | Rural | 37.7 (23.5, 57.8) | 74 (2, 96) | 5 |
|
|
| Floyd County 7 | Rural | 37.6 (27.0, 51.6) | 75 (6, 96) | 9 |
stable
|
-1.5 (-3.5, 0.2) |
| Lucas County 7 | Rural | 37.1 (23.1, 57.6) | 76 (3, 96) | 5 |
falling
|
-7.8 (-56.3, -1.4) |
| Hardin County 7 | Rural | 36.7 (26.3, 50.3) | 77 (8, 96) | 10 |
falling
|
-1.6 (-3.2, -0.3) |
| Delaware County 7 | Rural | 36.7 (26.5, 49.9) | 78 (9, 96) | 10 |
falling
|
-2.0 (-4.0, -0.2) |
| Louisa County 7 | Rural | 36.6 (24.3, 53.7) | 79 (6, 96) | 6 |
falling
|
-2.3 (-4.1, -0.7) |
| Story County 7 | Urban | 36.6 (30.9, 42.9) | 80 (29, 93) | 32 |
falling
|
-1.8 (-2.8, -0.8) |
| Shelby County 7 | Rural | 36.1 (25.1, 51.5) | 81 (8, 96) | 7 |
falling
|
-1.9 (-3.8, -0.1) |
| Jefferson County 7 | Rural | 35.7 (25.4, 49.5) | 82 (9, 96) | 9 |
falling
|
-2.5 (-3.9, -1.2) |
| Washington County 7 | Urban | 35.6 (26.1, 47.6) | 83 (11, 96) | 10 |
falling
|
-3.0 (-4.8, -1.5) |
| Johnson County 7 | Urban | 35.5 (31.0, 40.3) | 84 (41, 93) | 49 |
falling
|
-1.9 (-2.6, -1.1) |
| Scott County 7 | Urban | 35.0 (31.4, 38.9) | 85 (47, 92) | 72 |
falling
|
-2.7 (-3.5, -1.8) |
| Warren County 7 | Urban | 33.7 (27.4, 41.1) | 86 (32, 96) | 21 |
stable
|
-1.3 (-2.5, 0.0) |
| Adair County 7 | Rural | 33.6 (20.6, 53.6) | 87 (5, 96) | 4 |
|
|
| Linn County 7 | Urban | 33.5 (30.4, 36.8) | 88 (56, 93) | 90 |
falling
|
-3.1 (-4.9, -2.5) |
| Kossuth County 7 | Rural | 33.2 (22.4, 47.8) | 89 (11, 96) | 8 |
falling
|
-2.1 (-3.6, -0.8) |
| Dickinson County 7 | Rural | 33.1 (22.9, 46.7) | 90 (13, 96) | 9 |
falling
|
-1.7 (-3.3, -0.2) |
| Cedar County 7 | Rural | 32.8 (22.9, 45.8) | 91 (15, 96) | 8 |
falling
|
-2.8 (-4.7, -1.7) |
| Cerro Gordo County 7 | Rural | 31.9 (25.6, 39.3) | 92 (40, 96) | 21 |
falling
|
-1.6 (-3.0, -0.4) |
| Dallas County 7 | Urban | 31.4 (26.5, 37.0) | 93 (52, 96) | 29 |
stable
|
-0.2 (-3.1, 6.5) |
| Hamilton County 7 | Rural | 30.3 (20.4, 43.7) | 94 (18, 96) | 7 |
falling
|
-2.0 (-3.6, -0.6) |
| Grundy County 7 | Urban | 29.6 (19.7, 43.7) | 95 (21, 96) | 6 |
stable
|
-1.2 (-2.8, 0.3) |
| Palo Alto County 7 | Rural | 25.5 (14.6, 42.5) | 96 (20, 96) | 4 |
stable
|
-1.8 (-3.9, 0.0) |
| Adams County 7 | Rural |
|
|
|
|
|
| Taylor County 7 | Rural |
|
|
|
|
|
| Wayne County 7 | Rural |
|
|
|
|
|
Notes:
Created by statecancerprofiles.cancer.gov on 04/21/2025 1:58 am.
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 (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.
‡ 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 in the Surveillance, Epidemiology, and End Results (SEER) Summary/Historic Combined Summary Stage (2004+).
⋔ 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. More information about methodology can be found on the CI*Rank website.
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).
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 2023 submission.
7 Source: SEER November 2023 submission.
8 Source: Incidence data provided by the SEER Program. AAPCs are calculated by the Joinpoint Regression Program and are based on APCs. Data 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. Population counts for denominators are based on Census populations as modified by NCI. The US Population Data File is used with SEER November 2023 data.
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 04/21/2025 1:58 am.
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.
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 (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.
‡ 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 in the Surveillance, Epidemiology, and End Results (SEER) Summary/Historic Combined Summary Stage (2004+).
⋔ 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. More information about methodology can be found on the CI*Rank website.
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).
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 2023 submission.
7 Source: SEER November 2023 submission.
8 Source: Incidence data provided by the SEER Program. AAPCs are calculated by the Joinpoint Regression Program and are based on APCs. Data 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. Population counts for denominators are based on Census populations as modified by NCI. The US Population Data File is used with SEER November 2023 data.
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.