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 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 | 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) |
| Monroe County 7 | Rural | 348.7 (226.7, 513.6) | 1 (1, 66) | 5 |
stable 
|
-0.1 (-2.5, 2.3) |
| Greene County 7 | Rural | 290.2 (195.2, 415.2) | 2 (1, 73) | 6 |
stable
|
-0.7 (-2.3, 0.9) |
| Worth County 7 | Rural | 288.7 (177.4, 442.2) | 3 (1, 82) | 4 |
|
|
| Emmet County 7 | Rural | 291.5 (197.8, 414.5) | 4 (1, 71) | 6 |
stable
|
-1.1 (-2.4, 0.2) |
| Cherokee County 7 | Rural | 285.3 (202.3, 390.1) | 5 (1, 69) | 8 |
falling
|
-1.5 (-3.1, -0.1) |
| Buena Vista County 7 | Rural | 289.2 (209.3, 388.8) | 6 (1, 60) | 9 |
falling
|
-2.8 (-4.7, -1.4) |
| Mitchell County 7 | Rural | 286.1 (195.8, 403.3) | 7 (1, 74) | 7 |
stable
|
-1.3 (-3.4, 0.6) |
| Sac County 7 | Rural | 278.2 (188.6, 395.0) | 8 (1, 78) | 6 |
falling
|
-2.3 (-4.3, -0.6) |
| Humboldt County 7 | Rural | 257.3 (166.8, 378.4) | 9 (1, 84) | 5 |
falling
|
-3.6 (-5.9, -2.0) |
| Van Buren County 7 | Rural | 258.1 (156.9, 400.0) | 10 (1, 87) | 4 |
|
|
| Decatur County 7 | Rural | 254.6 (154.9, 393.8) | 11 (1, 88) | 4 |
stable
|
-1.3 (-3.4, 0.6) |
| Tama County 7 | Rural | 248.9 (178.4, 337.8) | 12 (1, 77) | 8 |
falling
|
-1.8 (-3.6, -0.1) |
| Marion County 7 | Rural | 247.6 (194.5, 310.6) | 13 (2, 63) | 15 |
stable
|
-0.8 (-1.9, 0.3) |
| Crawford County 7 | Rural | 248.5 (173.4, 344.8) | 14 (1, 79) | 7 |
falling
|
-1.5 (-3.1, -0.1) |
| Louisa County 7 | Rural | 245.4 (156.4, 365.8) | 15 (1, 86) | 5 |
falling
|
-2.3 (-4.1, -0.5) |
| Monona County 7 | Rural | 241.1 (154.9, 357.2) | 16 (1, 87) | 5 |
falling
|
-2.1 (-3.5, -1.0) |
| Wright County 7 | Rural | 240.7 (166.2, 337.0) | 17 (1, 82) | 7 |
falling
|
-2.4 (-3.9, -1.1) |
| Plymouth County 7 | Rural | 236.8 (176.8, 310.1) | 18 (2, 74) | 11 |
falling
|
-3.0 (-4.6, -1.6) |
| Clarke County 7 | Rural | 235.4 (140.8, 367.2) | 19 (1, 88) | 4 |
|
|
| Chickasaw County 7 | Rural | 226.8 (150.8, 327.1) | 20 (1, 86) | 6 |
stable
|
-0.8 (-2.5, 0.9) |
| Davis County 7 | Rural | 227.5 (133.6, 361.4) | 21 (1, 88) | 4 |
falling
|
-2.9 (-5.2, -1.0) |
| Mills County 7 | Urban | 223.8 (148.5, 323.8) | 22 (1, 86) | 6 |
falling
|
-2.5 (-4.4, -0.6) |
| Fremont County 7 | Rural | 224.3 (126.8, 365.8) | 23 (1, 88) | 3 |
|
|
| Fayette County 7 | Rural | 224.8 (165.3, 298.7) | 24 (2, 80) | 10 |
falling
|
-1.2 (-2.3, -0.1) |
| Calhoun County 7 | Rural | 223.9 (143.7, 331.8) | 25 (1, 87) | 5 |
|
|
| Franklin County 7 | Rural | 220.6 (139.1, 331.9) | 26 (1, 87) | 5 |
falling
|
-2.3 (-4.9, -0.3) |
| Clinton County 7 | Rural | 218.3 (176.4, 267.1) | 27 (6, 67) | 19 |
falling
|
-2.7 (-4.0, -1.5) |
| Webster County 7 | Rural | 216.3 (169.6, 271.6) | 28 (5, 76) | 15 |
falling
|
-3.4 (-4.6, -2.5) |
| Lyon County 7 | Rural | 215.1 (135.2, 323.8) | 29 (1, 88) | 5 |
falling
|
-2.2 (-4.0, -0.7) |
| Woodbury County 7 | Urban | 212.2 (180.2, 248.2) | 30 (10, 61) | 32 |
falling
|
-1.9 (-2.8, -1.1) |
| Cass County 7 | Rural | 210.3 (142.5, 298.8) | 31 (2, 87) | 6 |
stable
|
-1.4 (-3.1, 0.2) |
| Poweshiek County 7 | Rural | 211.6 (150.7, 288.6) | 32 (3, 86) | 8 |
falling
|
-6.1 (-20.2, -3.7) |
| Floyd County 7 | Rural | 209.5 (146.5, 290.1) | 33 (3, 86) | 7 |
falling
|
-1.9 (-3.2, -0.6) |
| Appanoose County 7 | Rural | 202.0 (134.6, 291.1) | 34 (2, 87) | 6 |
falling
|
-3.1 (-5.0, -1.7) |
| Page County 7 | Rural | 209.5 (144.7, 292.7) | 35 (3, 86) | 7 |
falling
|
-5.6 (-16.0, -2.5) |
| Grundy County 7 | Urban | 198.4 (129.1, 291.7) | 36 (2, 88) | 5 |
stable
|
-1.5 (-3.4, 0.2) |
| Clayton County 7 | Rural | 200.2 (142.9, 272.6) | 37 (3, 86) | 8 |
falling
|
-2.6 (-4.3, -1.1) |
| Muscatine County 7 | Rural | 199.4 (155.1, 252.3) | 38 (7, 79) | 14 |
falling
|
-2.4 (-3.8, -1.1) |
| Allamakee County 7 | Rural | 199.4 (134.1, 285.1) | 39 (3, 87) | 6 |
falling
|
-2.9 (-4.9, -1.2) |
| Henry County 7 | Rural | 199.3 (140.8, 273.9) | 40 (4, 86) | 8 |
falling
|
-1.9 (-3.6, -0.3) |
| Clay County 7 | Rural | 195.0 (134.6, 272.8) | 41 (4, 87) | 7 |
falling
|
-2.9 (-4.3, -1.6) |
| Jefferson County 7 | Rural | 196.3 (135.6, 274.7) | 42 (4, 87) | 7 |
falling
|
-2.4 (-4.0, -0.9) |
| Jackson County 7 | Rural | 194.6 (138.5, 265.8) | 43 (6, 86) | 8 |
stable
|
-3.0 (-14.3, 0.3) |
| Madison County 7 | Urban | 196.0 (125.0, 291.8) | 44 (2, 88) | 5 |
stable
|
-1.8 (-4.2, 0.3) |
| Guthrie County 7 | Urban | 193.4 (121.8, 291.4) | 45 (3, 88) | 5 |
falling
|
-2.1 (-4.1, -0.4) |
| Shelby County 7 | Rural | 193.4 (125.1, 284.9) | 46 (3, 88) | 5 |
falling
|
-2.2 (-4.2, -0.5) |
| Jasper County 7 | Urban | 192.1 (148.8, 243.8) | 47 (10, 83) | 14 |
falling
|
-1.9 (-3.1, -0.8) |
| Lee County 7 | Rural | 187.6 (143.8, 240.5) | 48 (8, 84) | 13 |
falling
|
-2.2 (-3.3, -1.3) |
| Howard County 7 | Rural | 182.4 (107.3, 289.8) | 49 (3, 88) | 4 |
falling
|
-2.3 (-4.5, -0.6) |
| Keokuk County 7 | Rural | 185.1 (112.0, 287.3) | 50 (3, 88) | 4 |
falling
|
-2.7 (-4.7, -1.1) |
| Marshall County 7 | Rural | 184.1 (141.8, 235.1) | 51 (13, 85) | 13 |
falling
|
-22.5 (-40.6, -1.7) |
| Hancock County 7 | Rural | 183.4 (113.9, 278.7) | 52 (4, 88) | 4 |
stable
|
-1.4 (-3.3, 0.4) |
| O'Brien County 7 | Rural | 174.8 (114.3, 255.7) | 53 (5, 88) | 6 |
falling
|
-3.3 (-5.5, -1.8) |
| Boone County 7 | Urban | 178.1 (127.1, 242.3) | 54 (10, 88) | 8 |
falling
|
-2.5 (-4.0, -1.2) |
| Benton County 7 | Urban | 170.4 (121.9, 231.7) | 55 (13, 88) | 8 |
falling
|
-3.5 (-5.4, -2.1) |
| Sioux County 7 | Rural | 168.0 (124.3, 222.1) | 56 (15, 88) | 10 |
falling
|
-6.3 (-15.4, -4.2) |
| Bremer County 7 | Urban | 168.1 (119.9, 229.1) | 57 (11, 88) | 8 |
falling
|
-2.7 (-4.4, -1.2) |
| Pottawattamie County 7 | Urban | 168.0 (139.9, 200.1) | 58 (27, 82) | 26 |
falling
|
-2.9 (-3.8, -2.0) |
| Wapello County 7 | Rural | 166.5 (123.5, 219.5) | 59 (15, 88) | 10 |
falling
|
-2.1 (-3.2, -1.2) |
| Harrison County 7 | Urban | 168.1 (106.1, 252.4) | 60 (7, 88) | 5 |
falling
|
-2.6 (-4.5, -1.0) |
| Polk County 7 | Urban | 166.1 (151.8, 181.3) | 61 (39, 75) | 104 |
falling
|
-3.9 (-6.9, -3.0) |
| Winnebago County 7 | Rural | 163.6 (98.9, 255.1) | 62 (6, 88) | 4 |
stable
|
-1.4 (-3.3, 0.3) |
| Butler County 7 | Rural | 161.1 (104.8, 236.6) | 63 (9, 88) | 5 |
falling
|
-2.7 (-4.2, -1.5) |
| Scott County 7 | Urban | 161.9 (141.1, 184.8) | 64 (37, 81) | 45 |
falling
|
-3.8 (-4.7, -2.9) |
| Story County 7 | Urban | 160.1 (129.5, 195.8) | 65 (27, 86) | 19 |
falling
|
-2.6 (-3.7, -1.6) |
| Des Moines County 7 | Rural | 160.7 (122.9, 206.3) | 66 (20, 87) | 12 |
falling
|
-3.4 (-4.6, -2.4) |
| Warren County 7 | Urban | 159.9 (122.9, 204.3) | 67 (23, 87) | 13 |
falling
|
-2.2 (-3.8, -0.6) |
| Union County 7 | Rural | 154.5 (92.8, 241.6) | 68 (7, 88) | 4 |
falling
|
-2.4 (-4.5, -0.7) |
| 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) |
| Buchanan County 7 | Rural | 152.9 (99.5, 224.5) | 71 (15, 88) | 5 |
stable
|
-1.8 (-3.7, 0.0) |
| Hamilton County 7 | Rural | 151.2 (95.2, 227.8) | 72 (14, 88) | 5 |
falling
|
-2.2 (-3.8, -0.8) |
| Cerro Gordo County 7 | Rural | 151.0 (117.4, 190.9) | 73 (31, 88) | 14 |
falling
|
-2.5 (-4.2, -1.0) |
| Palo Alto County 7 | Rural | 150.1 (84.5, 246.6) | 74 (8, 88) | 3 |
falling
|
-2.9 (-4.7, -1.5) |
| Jones County 7 | Urban | 148.9 (101.5, 210.9) | 75 (18, 88) | 6 |
falling
|
-5.1 (-20.7, -3.2) |
| Dallas County 7 | Urban | 147.6 (117.7, 182.8) | 76 (33, 88) | 17 |
falling
|
-5.8 (-18.6, -3.8) |
| Mahaska County 7 | Rural | 147.9 (98.6, 212.7) | 77 (18, 88) | 6 |
falling
|
-9.9 (-33.3, -3.7) |
| Delaware County 7 | Rural | 142.2 (92.5, 209.3) | 78 (16, 88) | 5 |
falling
|
-2.4 (-4.3, -0.7) |
| Johnson County 7 | Urban | 141.5 (117.5, 169.0) | 79 (46, 87) | 25 |
falling
|
-3.1 (-4.1, -2.0) |
| Cedar County 7 | Rural | 136.8 (88.5, 201.9) | 80 (22, 88) | 5 |
falling
|
-3.9 (-17.9, -2.1) |
| Dickinson County 7 | Rural | 136.4 (92.8, 193.4) | 81 (25, 88) | 6 |
falling
|
-3.5 (-5.0, -2.2) |
| Carroll County 7 | Rural | 132.1 (87.9, 190.6) | 82 (21, 88) | 6 |
falling
|
-4.1 (-5.6, -2.9) |
| Washington County 7 | Urban | 129.9 (86.5, 187.4) | 83 (30, 88) | 6 |
falling
|
-4.0 (-6.1, -2.4) |
| Linn County 7 | Urban | 128.4 (112.3, 146.1) | 84 (63, 88) | 47 |
falling
|
-4.3 (-5.0, -3.8) |
| 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) |
| Winneshiek County 7 | Rural | 121.5 (79.0, 178.5) | 87 (36, 88) | 5 |
falling
|
-6.7 (-11.8, -4.7) |
| Iowa County 7 | Rural | 106.0 (60.1, 172.5) | 88 (36, 88) | 3 |
falling
|
-2.6 (-4.4, -1.0) |
| Adair County 7 | Rural |
|
|
|
|
|
| Adams County 7 | Rural |
|
|
|
|
|
| Audubon County 7 | Rural |
|
|
|
|
|
| Ida County 7 | Rural |
|
|
|
|
|
| Lucas County 7 | Rural |
|
|
|
|
|
| Montgomery County 7 | Rural |
|
|
|
|
|
| Osceola County 7 | Rural |
|
|
|
|
|
| Pocahontas County 7 | Rural |
|
|
|
|
|
| Ringgold County 7 | Rural |
|
|
|
|
|
| Taylor County 7 | Rural |
|
|
|
|
|
| Wayne County 7 | Rural |
|
|
|
|
|
Notes:
Created by statecancerprofiles.cancer.gov on 03/26/2026 3:09 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 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.