Incidence Rates Table
Incidence Rate Report for Iowa by County
Colon & Rectum (All Stages^), 2018-2022
All Races (includes Hispanic), Both Sexes, Ages 65+
Sorted by Count
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 | 176.2 (171.1, 181.3) | N/A | 948 |
falling 
|
-3.4 (-3.7, -3.2) |
| US (SEER+NPCR) 1 | N/A | 155.0 (154.5, 155.5) | N/A | 81,215 |
falling
|
-2.6 (-2.8, -2.3) |
| Polk County 7 | Urban | 166.1 (151.8, 181.3) | 61 (39, 75) | 104 |
falling
|
-3.9 (-6.9, -3.0) |
| Linn County 7 | Urban | 128.4 (112.3, 146.1) | 84 (63, 88) | 47 |
falling
|
-4.3 (-5.0, -3.8) |
| Scott County 7 | Urban | 161.9 (141.1, 184.8) | 64 (37, 81) | 45 |
falling
|
-3.8 (-4.7, -2.9) |
| Black Hawk County 7 | Urban | 152.3 (129.4, 178.1) | 70 (39, 85) | 32 |
falling
|
-4.1 (-11.5, -3.2) |
| Woodbury County 7 | Urban | 212.2 (180.2, 248.2) | 30 (10, 61) | 32 |
falling
|
-1.9 (-2.8, -1.1) |
| Dubuque County 7 | Urban | 152.0 (127.2, 180.2) | 69 (38, 86) | 27 |
falling
|
-3.3 (-4.5, -2.3) |
| Pottawattamie County 7 | Urban | 168.0 (139.9, 200.1) | 58 (27, 82) | 26 |
falling
|
-2.9 (-3.8, -2.0) |
| Johnson County 7 | Urban | 141.5 (117.5, 169.0) | 79 (46, 87) | 25 |
falling
|
-3.1 (-4.1, -2.0) |
| Story County 7 | Urban | 160.1 (129.5, 195.8) | 65 (27, 86) | 19 |
falling
|
-2.6 (-3.7, -1.6) |
| Clinton County 7 | Rural | 218.3 (176.4, 267.1) | 27 (6, 67) | 19 |
falling
|
-2.7 (-4.0, -1.5) |
| Dallas County 7 | Urban | 147.6 (117.7, 182.8) | 76 (33, 88) | 17 |
falling
|
-5.8 (-18.6, -3.8) |
| Marion County 7 | Rural | 247.6 (194.5, 310.6) | 13 (2, 63) | 15 |
stable 
|
-0.8 (-1.9, 0.3) |
| Webster County 7 | Rural | 216.3 (169.6, 271.6) | 28 (5, 76) | 15 |
falling
|
-3.4 (-4.6, -2.5) |
| Cerro Gordo County 7 | Rural | 151.0 (117.4, 190.9) | 73 (31, 88) | 14 |
falling
|
-2.5 (-4.2, -1.0) |
| Muscatine County 7 | Rural | 199.4 (155.1, 252.3) | 38 (7, 79) | 14 |
falling
|
-2.4 (-3.8, -1.1) |
| Jasper County 7 | Urban | 192.1 (148.8, 243.8) | 47 (10, 83) | 14 |
falling
|
-1.9 (-3.1, -0.8) |
| Marshall County 7 | Rural | 184.1 (141.8, 235.1) | 51 (13, 85) | 13 |
falling
|
-22.5 (-40.6, -1.7) |
| Warren County 7 | Urban | 159.9 (122.9, 204.3) | 67 (23, 87) | 13 |
falling
|
-2.2 (-3.8, -0.6) |
| Lee County 7 | Rural | 187.6 (143.8, 240.5) | 48 (8, 84) | 13 |
falling
|
-2.2 (-3.3, -1.3) |
| Des Moines County 7 | Rural | 160.7 (122.9, 206.3) | 66 (20, 87) | 12 |
falling
|
-3.4 (-4.6, -2.4) |
| Plymouth County 7 | Rural | 236.8 (176.8, 310.1) | 18 (2, 74) | 11 |
falling
|
-3.0 (-4.6, -1.6) |
| Sioux County 7 | Rural | 168.0 (124.3, 222.1) | 56 (15, 88) | 10 |
falling
|
-6.3 (-15.4, -4.2) |
| Wapello County 7 | Rural | 166.5 (123.5, 219.5) | 59 (15, 88) | 10 |
falling
|
-2.1 (-3.2, -1.2) |
| Fayette County 7 | Rural | 224.8 (165.3, 298.7) | 24 (2, 80) | 10 |
falling
|
-1.2 (-2.3, -0.1) |
| Buena Vista County 7 | Rural | 289.2 (209.3, 388.8) | 6 (1, 60) | 9 |
falling
|
-2.8 (-4.7, -1.4) |
| Tama County 7 | Rural | 248.9 (178.4, 337.8) | 12 (1, 77) | 8 |
falling
|
-1.8 (-3.6, -0.1) |
| Benton County 7 | Urban | 170.4 (121.9, 231.7) | 55 (13, 88) | 8 |
falling
|
-3.5 (-5.4, -2.1) |
| Boone County 7 | Urban | 178.1 (127.1, 242.3) | 54 (10, 88) | 8 |
falling
|
-2.5 (-4.0, -1.2) |
| Clayton County 7 | Rural | 200.2 (142.9, 272.6) | 37 (3, 86) | 8 |
falling
|
-2.6 (-4.3, -1.1) |
| Bremer County 7 | Urban | 168.1 (119.9, 229.1) | 57 (11, 88) | 8 |
falling
|
-2.7 (-4.4, -1.2) |
| Cherokee County 7 | Rural | 285.3 (202.3, 390.1) | 5 (1, 69) | 8 |
falling
|
-1.5 (-3.1, -0.1) |
| Jackson County 7 | Rural | 194.6 (138.5, 265.8) | 43 (6, 86) | 8 |
stable
|
-3.0 (-14.3, 0.3) |
| Poweshiek County 7 | Rural | 211.6 (150.7, 288.6) | 32 (3, 86) | 8 |
falling
|
-6.1 (-20.2, -3.7) |
| Henry County 7 | Rural | 199.3 (140.8, 273.9) | 40 (4, 86) | 8 |
falling
|
-1.9 (-3.6, -0.3) |
| Jefferson County 7 | Rural | 196.3 (135.6, 274.7) | 42 (4, 87) | 7 |
falling
|
-2.4 (-4.0, -0.9) |
| Crawford County 7 | Rural | 248.5 (173.4, 344.8) | 14 (1, 79) | 7 |
falling
|
-1.5 (-3.1, -0.1) |
| Floyd County 7 | Rural | 209.5 (146.5, 290.1) | 33 (3, 86) | 7 |
falling
|
-1.9 (-3.2, -0.6) |
| Clay County 7 | Rural | 195.0 (134.6, 272.8) | 41 (4, 87) | 7 |
falling
|
-2.9 (-4.3, -1.6) |
| Wright County 7 | Rural | 240.7 (166.2, 337.0) | 17 (1, 82) | 7 |
falling
|
-2.4 (-3.9, -1.1) |
| Mitchell County 7 | Rural | 286.1 (195.8, 403.3) | 7 (1, 74) | 7 |
stable
|
-1.3 (-3.4, 0.6) |
| Page County 7 | Rural | 209.5 (144.7, 292.7) | 35 (3, 86) | 7 |
falling
|
-5.6 (-16.0, -2.5) |
| Dickinson County 7 | Rural | 136.4 (92.8, 193.4) | 81 (25, 88) | 6 |
falling
|
-3.5 (-5.0, -2.2) |
| Emmet County 7 | Rural | 291.5 (197.8, 414.5) | 4 (1, 71) | 6 |
stable
|
-1.1 (-2.4, 0.2) |
| Jones County 7 | Urban | 148.9 (101.5, 210.9) | 75 (18, 88) | 6 |
falling
|
-5.1 (-20.7, -3.2) |
| Sac County 7 | Rural | 278.2 (188.6, 395.0) | 8 (1, 78) | 6 |
falling
|
-2.3 (-4.3, -0.6) |
| Cass County 7 | Rural | 210.3 (142.5, 298.8) | 31 (2, 87) | 6 |
stable
|
-1.4 (-3.1, 0.2) |
| Allamakee County 7 | Rural | 199.4 (134.1, 285.1) | 39 (3, 87) | 6 |
falling
|
-2.9 (-4.9, -1.2) |
| Carroll County 7 | Rural | 132.1 (87.9, 190.6) | 82 (21, 88) | 6 |
falling
|
-4.1 (-5.6, -2.9) |
| Greene County 7 | Rural | 290.2 (195.2, 415.2) | 2 (1, 73) | 6 |
stable
|
-0.7 (-2.3, 0.9) |
| Appanoose County 7 | Rural | 202.0 (134.6, 291.1) | 34 (2, 87) | 6 |
falling
|
-3.1 (-5.0, -1.7) |
| Chickasaw County 7 | Rural | 226.8 (150.8, 327.1) | 20 (1, 86) | 6 |
stable
|
-0.8 (-2.5, 0.9) |
| Mahaska County 7 | Rural | 147.9 (98.6, 212.7) | 77 (18, 88) | 6 |
falling
|
-9.9 (-33.3, -3.7) |
| Mills County 7 | Urban | 223.8 (148.5, 323.8) | 22 (1, 86) | 6 |
falling
|
-2.5 (-4.4, -0.6) |
| Washington County 7 | Urban | 129.9 (86.5, 187.4) | 83 (30, 88) | 6 |
falling
|
-4.0 (-6.1, -2.4) |
| O'Brien County 7 | Rural | 174.8 (114.3, 255.7) | 53 (5, 88) | 6 |
falling
|
-3.3 (-5.5, -1.8) |
| Buchanan County 7 | Rural | 152.9 (99.5, 224.5) | 71 (15, 88) | 5 |
stable
|
-1.8 (-3.7, 0.0) |
| Butler County 7 | Rural | 161.1 (104.8, 236.6) | 63 (9, 88) | 5 |
falling
|
-2.7 (-4.2, -1.5) |
| Cedar County 7 | Rural | 136.8 (88.5, 201.9) | 80 (22, 88) | 5 |
falling
|
-3.9 (-17.9, -2.1) |
| Delaware County 7 | Rural | 142.2 (92.5, 209.3) | 78 (16, 88) | 5 |
falling
|
-2.4 (-4.3, -0.7) |
| Grundy County 7 | Urban | 198.4 (129.1, 291.7) | 36 (2, 88) | 5 |
stable
|
-1.5 (-3.4, 0.2) |
| Humboldt County 7 | Rural | 257.3 (166.8, 378.4) | 9 (1, 84) | 5 |
falling
|
-3.6 (-5.9, -2.0) |
| Monroe County 7 | Rural | 348.7 (226.7, 513.6) | 1 (1, 66) | 5 |
stable
|
-0.1 (-2.5, 2.3) |
| Shelby County 7 | Rural | 193.4 (125.1, 284.9) | 46 (3, 88) | 5 |
falling
|
-2.2 (-4.2, -0.5) |
| Winneshiek County 7 | Rural | 121.5 (79.0, 178.5) | 87 (36, 88) | 5 |
falling
|
-6.7 (-11.8, -4.7) |
| Calhoun County 7 | Rural | 223.9 (143.7, 331.8) | 25 (1, 87) | 5 |
|
|
| Hardin County 7 | Rural | 128.8 (82.5, 191.5) | 85 (26, 88) | 5 |
falling
|
-15.0 (-32.9, -4.7) |
| Kossuth County 7 | Rural | 124.9 (80.1, 185.9) | 86 (29, 88) | 5 |
falling
|
-3.1 (-5.0, -1.5) |
| Monona County 7 | Rural | 241.1 (154.9, 357.2) | 16 (1, 87) | 5 |
falling
|
-2.1 (-3.5, -1.0) |
| Louisa County 7 | Rural | 245.4 (156.4, 365.8) | 15 (1, 86) | 5 |
falling
|
-2.3 (-4.1, -0.5) |
| Madison County 7 | Urban | 196.0 (125.0, 291.8) | 44 (2, 88) | 5 |
stable
|
-1.8 (-4.2, 0.3) |
| Franklin County 7 | Rural | 220.6 (139.1, 331.9) | 26 (1, 87) | 5 |
falling
|
-2.3 (-4.9, -0.3) |
| Guthrie County 7 | Urban | 193.4 (121.8, 291.4) | 45 (3, 88) | 5 |
falling
|
-2.1 (-4.1, -0.4) |
| Hamilton County 7 | Rural | 151.2 (95.2, 227.8) | 72 (14, 88) | 5 |
falling
|
-2.2 (-3.8, -0.8) |
| Harrison County 7 | Urban | 168.1 (106.1, 252.4) | 60 (7, 88) | 5 |
falling
|
-2.6 (-4.5, -1.0) |
| Lyon County 7 | Rural | 215.1 (135.2, 323.8) | 29 (1, 88) | 5 |
falling
|
-2.2 (-4.0, -0.7) |
| Hancock County 7 | Rural | 183.4 (113.9, 278.7) | 52 (4, 88) | 4 |
stable
|
-1.4 (-3.3, 0.4) |
| Worth County 7 | Rural | 288.7 (177.4, 442.2) | 3 (1, 82) | 4 |
|
|
| Decatur County 7 | Rural | 254.6 (154.9, 393.8) | 11 (1, 88) | 4 |
stable
|
-1.3 (-3.4, 0.6) |
| Keokuk County 7 | Rural | 185.1 (112.0, 287.3) | 50 (3, 88) | 4 |
falling
|
-2.7 (-4.7, -1.1) |
| Van Buren County 7 | Rural | 258.1 (156.9, 400.0) | 10 (1, 87) | 4 |
|
|
| Winnebago County 7 | Rural | 163.6 (98.9, 255.1) | 62 (6, 88) | 4 |
stable
|
-1.4 (-3.3, 0.3) |
| Clarke County 7 | Rural | 235.4 (140.8, 367.2) | 19 (1, 88) | 4 |
|
|
| Union County 7 | Rural | 154.5 (92.8, 241.6) | 68 (7, 88) | 4 |
falling
|
-2.4 (-4.5, -0.7) |
| Davis County 7 | Rural | 227.5 (133.6, 361.4) | 21 (1, 88) | 4 |
falling
|
-2.9 (-5.2, -1.0) |
| Howard County 7 | Rural | 182.4 (107.3, 289.8) | 49 (3, 88) | 4 |
falling
|
-2.3 (-4.5, -0.6) |
| Fremont County 7 | Rural | 224.3 (126.8, 365.8) | 23 (1, 88) | 3 |
|
|
| Iowa County 7 | Rural | 106.0 (60.1, 172.5) | 88 (36, 88) | 3 |
falling
|
-2.6 (-4.4, -1.0) |
| Palo Alto County 7 | Rural | 150.1 (84.5, 246.6) | 74 (8, 88) | 3 |
falling
|
-2.9 (-4.7, -1.5) |
| Adair County 7 | Rural |
|
|
|
|
|
| Adams County 7 | Rural |
|
|
|
|
|
| Audubon County 7 | Rural |
|
|
|
|
|
| Ida County 7 | Rural |
|
|
|
|
|
| Lucas County 7 | Rural |
|
|
|
|
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| Montgomery County 7 | Rural |
|
|
|
|
|
| Osceola County 7 | Rural |
|
|
|
|
|
| Pocahontas County 7 | Rural |
|
|
|
|
|
| Ringgold County 7 | Rural |
|
|
|
|
|
| Taylor County 7 | Rural |
|
|
|
|
|
| Wayne County 7 | Rural |
|
|
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|
|
Notes:
Created by statecancerprofiles.cancer.gov on 03/31/2026 12:31 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 (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 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.
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.