Incidence Rates Table
Incidence Rate Report for Iowa by County
Breast (All Stages^), 2018-2022
All Races (includes Hispanic), Female, 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 | 137.3 (134.8, 139.7) | N/A | 2,716 |
rising 
|
1.6 (0.5, 4.3) |
| US (SEER+NPCR) 1 | N/A | 131.3 (131.1, 131.6) | N/A | 270,245 |
rising
|
0.6 (0.5, 0.8) |
| Ida County 7 | Rural | 60.9 (33.9, 103.8) | 98 (62, 98) | 3 |
falling 
|
-3.6 (-30.3, -0.6) |
| Buena Vista County 7 | Rural | 69.4 (49.4, 94.9) | 97 (78, 98) | 9 |
falling
|
-1.9 (-3.6, -0.3) |
| Hancock County 7 | Rural | 79.4 (50.9, 118.7) | 96 (38, 98) | 6 |
stable 
|
-1.5 (-3.7, 0.5) |
| Montgomery County 7 | Rural | 84.2 (55.0, 124.5) | 95 (33, 98) | 6 |
falling
|
-19.1 (-35.9, -0.9) |
| Decatur County 7 | Rural | 94.8 (57.8, 147.7) | 94 (7, 98) | 5 |
stable
|
0.6 (-1.2, 2.7) |
| Clay County 7 | Rural | 96.0 (71.5, 126.9) | 93 (29, 98) | 12 |
falling
|
-1.8 (-3.0, -0.7) |
| Adair County 7 | Rural | 100.0 (61.0, 155.2) | 92 (4, 98) | 5 |
stable
|
0.4 (-2.0, 2.7) |
| Fremont County 7 | Rural | 102.0 (62.5, 159.2) | 90 (3, 98) | 5 |
falling
|
-2.1 (-4.1, -0.2) |
| Page County 7 | Rural | 102.4 (75.4, 136.9) | 91 (17, 98) | 12 |
stable
|
-0.7 (-2.4, 0.9) |
| Delaware County 7 | Rural | 106.1 (80.2, 138.4) | 89 (16, 97) | 13 |
stable
|
-0.3 (-1.5, 1.1) |
| Taylor County 7 | Rural | 106.3 (63.7, 168.7) | 88 (2, 98) | 4 |
stable
|
-1.3 (-3.5, 0.7) |
| Henry County 7 | Rural | 110.7 (85.4, 141.5) | 86 (16, 97) | 15 |
stable
|
-1.0 (-2.3, 0.4) |
| Sac County 7 | Rural | 110.8 (76.7, 156.4) | 87 (4, 98) | 9 |
stable
|
-1.0 (-2.8, 0.7) |
| Muscatine County 7 | Rural | 114.7 (96.4, 135.5) | 85 (24, 94) | 30 |
stable
|
-0.1 (-1.2, 1.0) |
| Shelby County 7 | Rural | 115.5 (84.5, 155.4) | 84 (6, 97) | 11 |
stable
|
-0.1 (-7.1, 1.5) |
| Woodbury County 7 | Urban | 116.3 (104.2, 129.4) | 83 (40, 91) | 72 |
stable
|
-0.5 (-1.1, 0.2) |
| Monroe County 7 | Rural | 116.4 (76.7, 170.7) | 82 (1, 98) | 6 |
stable
|
0.2 (-2.1, 2.6) |
| Marshall County 7 | Rural | 116.9 (98.1, 138.4) | 81 (23, 93) | 30 |
stable
|
-0.4 (-1.5, 0.7) |
| Floyd County 7 | Rural | 117.3 (87.8, 153.9) | 80 (5, 97) | 13 |
stable
|
-0.6 (-2.3, 1.2) |
| Carroll County 7 | Rural | 117.8 (93.0, 147.8) | 79 (11, 95) | 18 |
stable
|
-0.2 (-1.5, 1.1) |
| Lee County 7 | Rural | 118.9 (98.5, 142.5) | 76 (16, 94) | 28 |
stable
|
0.1 (-1.0, 1.2) |
| Van Buren County 7 | Rural | 119.2 (78.7, 175.4) | 77 (1, 98) | 7 |
stable
|
-1.1 (-3.4, 1.1) |
| Clayton County 7 | Rural | 119.4 (90.5, 154.9) | 78 (5, 96) | 15 |
stable
|
-5.4 (-17.5, 1.2) |
| Guthrie County 7 | Urban | 119.6 (84.4, 165.7) | 75 (2, 97) | 9 |
stable
|
-0.2 (-2.0, 1.7) |
| Hardin County 7 | Rural | 119.7 (90.5, 155.7) | 73 (5, 96) | 14 |
stable
|
0.7 (-0.8, 2.3) |
| Humboldt County 7 | Rural | 120.1 (82.9, 169.1) | 74 (2, 98) | 8 |
stable
|
-0.1 (-1.7, 1.6) |
| Crawford County 7 | Rural | 120.7 (91.6, 156.5) | 72 (5, 96) | 13 |
stable
|
-0.1 (-1.4, 1.3) |
| Greene County 7 | Rural | 121.1 (83.4, 171.5) | 71 (2, 98) | 8 |
stable
|
-0.1 (-1.8, 1.8) |
| Winnebago County 7 | Rural | 122.6 (86.6, 169.4) | 69 (1, 97) | 9 |
stable
|
1.2 (-0.8, 3.3) |
| Clarke County 7 | Rural | 122.8 (84.5, 172.9) | 67 (1, 98) | 8 |
stable
|
0.8 (-0.9, 2.8) |
| Des Moines County 7 | Rural | 122.9 (103.9, 144.7) | 70 (15, 92) | 34 |
stable
|
0.7 (-1.8, 8.2) |
| Buchanan County 7 | Rural | 123.6 (96.9, 155.6) | 68 (6, 96) | 16 |
stable
|
0.3 (-0.6, 1.3) |
| Webster County 7 | Rural | 124.1 (102.8, 148.6) | 66 (10, 93) | 29 |
stable
|
2.1 (-0.2, 10.8) |
| Union County 7 | Rural | 124.5 (92.3, 165.4) | 65 (3, 96) | 11 |
stable
|
-0.8 (-2.3, 0.7) |
| Boone County 7 | Urban | 124.6 (101.7, 151.5) | 63 (9, 93) | 24 |
stable
|
-0.8 (-2.0, 0.3) |
| Plymouth County 7 | Rural | 124.6 (100.3, 153.3) | 64 (7, 94) | 20 |
stable
|
-0.6 (-1.6, 0.4) |
| Wayne County 7 | Rural | 125.6 (77.0, 193.6) | 62 (1, 98) | 5 |
stable
|
-0.7 (-3.6, 1.9) |
| Lucas County 7 | Rural | 126.2 (86.7, 178.8) | 61 (1, 97) | 8 |
stable
|
1.6 (-0.6, 4.0) |
| Monona County 7 | Rural | 126.5 (86.9, 178.8) | 60 (1, 97) | 8 |
stable
|
1.4 (-0.5, 3.5) |
| Kossuth County 7 | Rural | 126.6 (94.5, 166.5) | 59 (3, 96) | 14 |
stable
|
-0.1 (-1.7, 1.5) |
| Mills County 7 | Urban | 127.0 (96.2, 165.4) | 58 (2, 95) | 13 |
stable
|
-0.5 (-2.2, 1.4) |
| Benton County 7 | Urban | 127.1 (102.7, 155.9) | 57 (6, 93) | 21 |
rising
|
1.3 (0.2, 2.8) |
| Palo Alto County 7 | Rural | 127.2 (87.5, 179.5) | 56 (1, 97) | 8 |
stable
|
-0.2 (-1.9, 1.5) |
| Mitchell County 7 | Rural | 127.9 (89.2, 178.1) | 55 (1, 97) | 9 |
stable
|
-0.3 (-2.1, 1.4) |
| Fayette County 7 | Rural | 128.0 (100.8, 160.9) | 54 (4, 94) | 18 |
stable
|
0.1 (-1.1, 1.4) |
| Butler County 7 | Rural | 128.8 (98.5, 166.5) | 53 (3, 95) | 14 |
stable
|
0.7 (-0.4, 1.9) |
| Allamakee County 7 | Rural | 129.7 (97.0, 170.4) | 52 (2, 95) | 13 |
stable
|
0.8 (-0.7, 2.4) |
| Pottawattamie County 7 | Urban | 131.2 (118.3, 145.3) | 51 (17, 80) | 83 |
stable
|
-0.1 (-0.7, 0.6) |
| Lyon County 7 | Rural | 131.8 (94.8, 178.7) | 50 (1, 96) | 9 |
rising
|
31.5 (2.3, 61.3) |
| Jefferson County 7 | Rural | 132.2 (101.1, 170.8) | 49 (1, 95) | 16 |
stable
|
0.5 (-1.1, 2.3) |
| Poweshiek County 7 | Rural | 132.7 (103.5, 167.9) | 47 (2, 94) | 17 |
stable
|
0.8 (-0.9, 2.6) |
| Wright County 7 | Rural | 133.0 (96.8, 178.4) | 46 (1, 95) | 11 |
stable
|
-1.5 (-3.2, 0.0) |
| Emmet County 7 | Rural | 133.0 (93.5, 184.6) | 48 (1, 97) | 9 |
stable
|
0.3 (-1.6, 2.3) |
| Dubuque County 7 | Urban | 133.3 (119.8, 147.8) | 44 (15, 79) | 83 |
stable
|
0.7 (0.0, 2.8) |
| Franklin County 7 | Rural | 133.5 (95.9, 182.2) | 43 (1, 96) | 10 |
stable
|
0.6 (-1.1, 2.5) |
| O'Brien County 7 | Rural | 133.8 (98.4, 177.7) | 42 (1, 95) | 12 |
stable
|
-0.7 (-2.3, 0.8) |
| Audubon County 7 | Rural | 134.5 (83.8, 206.0) | 45 (1, 98) | 6 |
stable
|
-0.9 (-3.3, 1.3) |
| Wapello County 7 | Rural | 134.6 (113.2, 158.9) | 41 (5, 88) | 32 |
stable
|
0.1 (-0.6, 0.9) |
| Louisa County 7 | Rural | 134.9 (98.1, 182.0) | 40 (1, 96) | 10 |
stable
|
-0.2 (-1.7, 1.5) |
| Calhoun County 7 | Rural | 135.4 (98.3, 183.7) | 39 (1, 95) | 10 |
stable
|
0.6 (-1.1, 2.3) |
| Cerro Gordo County 7 | Rural | 135.8 (116.3, 157.8) | 38 (7, 85) | 43 |
stable
|
-0.3 (-1.1, 0.7) |
| Cass County 7 | Rural | 136.6 (103.4, 177.9) | 36 (1, 94) | 14 |
stable
|
-0.5 (-1.7, 0.6) |
| Bremer County 7 | Urban | 136.9 (111.7, 166.3) | 37 (4, 91) | 23 |
stable
|
-0.3 (-1.3, 0.8) |
| Clinton County 7 | Rural | 137.2 (118.8, 157.8) | 33 (6, 83) | 45 |
stable
|
0.2 (-0.6, 0.9) |
| Story County 7 | Urban | 137.4 (121.4, 154.8) | 35 (9, 81) | 59 |
stable
|
0.1 (-0.6, 0.8) |
| Jones County 7 | Urban | 137.5 (109.4, 171.1) | 34 (2, 92) | 19 |
stable
|
0.4 (-0.6, 1.6) |
| Sioux County 7 | Rural | 139.5 (115.7, 166.9) | 32 (3, 87) | 27 |
stable
|
0.2 (-0.6, 1.2) |
| Worth County 7 | Rural | 140.6 (96.8, 199.2) | 31 (1, 96) | 8 |
stable
|
0.5 (-1.5, 2.7) |
| Ringgold County 7 | Rural | 143.9 (85.4, 228.9) | 29 (1, 98) | 5 |
stable
|
0.6 (-1.2, 2.6) |
| Polk County 7 | Urban | 143.9 (137.5, 150.6) | 30 (14, 51) | 394 |
stable
|
0.1 (-0.2, 0.5) |
| Dallas County 7 | Urban | 144.1 (129.8, 159.5) | 28 (6, 66) | 76 |
stable
|
0.0 (-0.4, 0.6) |
| Osceola County 7 | Rural | 145.2 (95.7, 213.4) | 27 (1, 97) | 7 |
stable
|
-0.2 (-2.3, 2.0) |
| Winneshiek County 7 | Rural | 146.3 (116.7, 181.7) | 25 (1, 88) | 20 |
stable
|
0.5 (-0.8, 1.9) |
| Linn County 7 | Urban | 146.5 (137.3, 156.0) | 26 (9, 53) | 206 |
rising
|
0.6 (0.1, 1.1) |
| Jackson County 7 | Rural | 147.0 (116.9, 182.9) | 24 (1, 90) | 19 |
stable
|
0.2 (-1.2, 1.8) |
| Iowa County 7 | Rural | 148.4 (116.6, 186.8) | 23 (1, 89) | 17 |
stable
|
0.4 (-0.9, 1.9) |
| Jasper County 7 | Urban | 149.7 (127.5, 174.8) | 22 (2, 77) | 37 |
stable
|
0.7 (-0.1, 1.6) |
| Madison County 7 | Urban | 150.4 (118.5, 188.8) | 20 (1, 87) | 16 |
stable
|
0.2 (-1.4, 2.1) |
| Dickinson County 7 | Rural | 150.6 (119.2, 188.2) | 18 (1, 87) | 21 |
rising
|
1.0 (0.2, 1.9) |
| Scott County 7 | Urban | 150.6 (140.0, 161.7) | 21 (6, 52) | 163 |
stable
|
0.1 (-0.5, 0.8) |
| Black Hawk County 7 | Urban | 150.6 (137.9, 164.2) | 17 (5, 56) | 116 |
rising
|
2.1 (0.9, 6.2) |
| Keokuk County 7 | Rural | 151.1 (108.2, 205.9) | 19 (1, 95) | 10 |
stable
|
1.4 (-0.5, 3.6) |
| Warren County 7 | Urban | 151.9 (133.1, 172.8) | 16 (2, 68) | 50 |
rising
|
1.4 (0.5, 2.4) |
| Mahaska County 7 | Rural | 154.0 (124.9, 188.1) | 15 (1, 80) | 22 |
stable
|
5.8 (-0.6, 21.3) |
| Marion County 7 | Rural | 154.1 (130.4, 181.1) | 14 (1, 72) | 33 |
stable
|
0.4 (-0.7, 1.6) |
| Appanoose County 7 | Rural | 154.2 (116.1, 201.4) | 13 (1, 90) | 14 |
stable
|
0.7 (-1.3, 2.7) |
| Davis County 7 | Rural | 157.3 (111.3, 216.2) | 11 (1, 93) | 9 |
stable
|
0.7 (-1.6, 3.3) |
| Johnson County 7 | Urban | 157.9 (144.8, 171.8) | 10 (2, 42) | 114 |
rising
|
0.6 (0.1, 1.2) |
| Chickasaw County 7 | Rural | 158.0 (116.9, 209.1) | 12 (1, 91) | 12 |
stable
|
0.8 (-0.7, 2.3) |
| Cedar County 7 | Rural | 158.6 (127.5, 195.6) | 9 (1, 84) | 20 |
stable
|
1.1 (-0.3, 2.8) |
| Howard County 7 | Rural | 160.6 (114.2, 219.7) | 8 (1, 94) | 10 |
stable
|
0.4 (-1.6, 2.4) |
| Grundy County 7 | Urban | 161.1 (122.5, 208.6) | 7 (1, 88) | 14 |
stable
|
0.7 (-0.6, 2.1) |
| Hamilton County 7 | Rural | 163.0 (125.0, 209.0) | 5 (1, 86) | 15 |
stable
|
0.9 (-0.6, 2.6) |
| Pocahontas County 7 | Rural | 163.4 (112.5, 230.8) | 6 (1, 95) | 8 |
stable
|
0.5 (-1.0, 2.1) |
| Cherokee County 7 | Rural | 168.2 (126.6, 219.8) | 4 (1, 85) | 14 |
stable
|
9.6 (-0.1, 34.8) |
| Harrison County 7 | Urban | 172.6 (135.8, 216.9) | 3 (1, 78) | 17 |
rising
|
1.4 (0.3, 2.6) |
| Washington County 7 | Urban | 174.0 (142.9, 209.9) | 2 (1, 66) | 25 |
rising
|
1.4 (0.3, 2.8) |
| Tama County 7 | Rural | 180.6 (142.9, 225.2) | 1 (1, 66) | 19 |
stable
|
1.4 (-0.1, 3.0) |
| Adams County 7 | Rural |
|
|
|
|
|
Notes:
Created by statecancerprofiles.cancer.gov on 03/20/2026 1:03 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.