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) |
| 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) |
| 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) |
| 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) |
| 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) |
| Worth County 7 | Rural | 288.7 (177.4, 442.2) | 3 (1, 82) | 4 |
|
|
| Hancock County 7 | Rural | 183.4 (113.9, 278.7) | 52 (4, 88) | 4 |
stable
|
-1.4 (-3.3, 0.4) |
| 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) |
| 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) |
| 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) |
| 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) |
| O'Brien County 7 | Rural | 174.8 (114.3, 255.7) | 53 (5, 88) | 6 |
falling
|
-3.3 (-5.5, -1.8) |
| 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) |
| 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) |
| Cass County 7 | Rural | 210.3 (142.5, 298.8) | 31 (2, 87) | 6 |
stable
|
-1.4 (-3.1, 0.2) |
| 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) |
| 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) |
| 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) |
| 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) |
| Jefferson County 7 | Rural | 196.3 (135.6, 274.7) | 42 (4, 87) | 7 |
falling
|
-2.4 (-4.0, -0.9) |
| Henry County 7 | Rural | 199.3 (140.8, 273.9) | 40 (4, 86) | 8 |
falling
|
-1.9 (-3.6, -0.3) |
| 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) |
| 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) |
| Tama County 7 | Rural | 248.9 (178.4, 337.8) | 12 (1, 77) | 8 |
falling
|
-1.8 (-3.6, -0.1) |
| Buena Vista County 7 | Rural | 289.2 (209.3, 388.8) | 6 (1, 60) | 9 |
falling
|
-2.8 (-4.7, -1.4) |
| Fayette County 7 | Rural | 224.8 (165.3, 298.7) | 24 (2, 80) | 10 |
falling
|
-1.2 (-2.3, -0.1) |
| 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) |
| Plymouth County 7 | Rural | 236.8 (176.8, 310.1) | 18 (2, 74) | 11 |
falling
|
-3.0 (-4.6, -1.6) |
| Des Moines County 7 | Rural | 160.7 (122.9, 206.3) | 66 (20, 87) | 12 |
falling
|
-3.4 (-4.6, -2.4) |
| Lee County 7 | Rural | 187.6 (143.8, 240.5) | 48 (8, 84) | 13 |
falling
|
-2.2 (-3.3, -1.3) |
| 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) |
| Jasper County 7 | Urban | 192.1 (148.8, 243.8) | 47 (10, 83) | 14 |
falling
|
-1.9 (-3.1, -0.8) |
| 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) |
| 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) |
| Dallas County 7 | Urban | 147.6 (117.7, 182.8) | 76 (33, 88) | 17 |
falling
|
-5.8 (-18.6, -3.8) |
| Clinton County 7 | Rural | 218.3 (176.4, 267.1) | 27 (6, 67) | 19 |
falling
|
-2.7 (-4.0, -1.5) |
| Story County 7 | Urban | 160.1 (129.5, 195.8) | 65 (27, 86) | 19 |
falling
|
-2.6 (-3.7, -1.6) |
| Johnson County 7 | Urban | 141.5 (117.5, 169.0) | 79 (46, 87) | 25 |
falling
|
-3.1 (-4.1, -2.0) |
| Pottawattamie County 7 | Urban | 168.0 (139.9, 200.1) | 58 (27, 82) | 26 |
falling
|
-2.9 (-3.8, -2.0) |
| Dubuque County 7 | Urban | 152.0 (127.2, 180.2) | 69 (38, 86) | 27 |
falling
|
-3.3 (-4.5, -2.3) |
| 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) |
| Scott County 7 | Urban | 161.9 (141.1, 184.8) | 64 (37, 81) | 45 |
falling
|
-3.8 (-4.7, -2.9) |
| Linn County 7 | Urban | 128.4 (112.3, 146.1) | 84 (63, 88) | 47 |
falling
|
-4.3 (-5.0, -3.8) |
| Polk County 7 | Urban | 166.1 (151.8, 181.3) | 61 (39, 75) | 104 |
falling
|
-3.9 (-6.9, -3.0) |
| Adair County 7 | Rural |
|
|
|
|
|
| Adams County 7 | Rural |
|
|
|
|
|
| Audubon County 7 | Rural |
|
|
|
|
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| Ida County 7 | Rural |
|
|
|
|
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| Lucas County 7 | Rural |
|
|
|
|
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| Montgomery County 7 | Rural |
|
|
|
|
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| Osceola County 7 | Rural |
|
|
|
|
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| Pocahontas 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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Notes:
Created by statecancerprofiles.cancer.gov on 03/27/2026 7:32 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.