Incidence Rates Table
Incidence Rate Report for Iowa by County
Breast (All Stages^), 2018-2022
All Races (includes Hispanic), Female, All Ages
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 | 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) |
| Taylor County 7 | Rural | 106.3 (63.7, 168.7) | 88 (2, 98) | 4 |
stable 
|
-1.3 (-3.5, 0.7) |
| Ringgold County 7 | Rural | 143.9 (85.4, 228.9) | 29 (1, 98) | 5 |
stable
|
0.6 (-1.2, 2.6) |
| Decatur County 7 | Rural | 94.8 (57.8, 147.7) | 94 (7, 98) | 5 |
stable
|
0.6 (-1.2, 2.7) |
| Fremont County 7 | Rural | 102.0 (62.5, 159.2) | 90 (3, 98) | 5 |
falling
|
-2.1 (-4.1, -0.2) |
| Adair County 7 | Rural | 100.0 (61.0, 155.2) | 92 (4, 98) | 5 |
stable
|
0.4 (-2.0, 2.7) |
| Wayne County 7 | Rural | 125.6 (77.0, 193.6) | 62 (1, 98) | 5 |
stable
|
-0.7 (-3.6, 1.9) |
| Audubon County 7 | Rural | 134.5 (83.8, 206.0) | 45 (1, 98) | 6 |
stable
|
-0.9 (-3.3, 1.3) |
| Hancock County 7 | Rural | 79.4 (50.9, 118.7) | 96 (38, 98) | 6 |
stable
|
-1.5 (-3.7, 0.5) |
| Monroe County 7 | Rural | 116.4 (76.7, 170.7) | 82 (1, 98) | 6 |
stable
|
0.2 (-2.1, 2.6) |
| Montgomery County 7 | Rural | 84.2 (55.0, 124.5) | 95 (33, 98) | 6 |
falling
|
-19.1 (-35.9, -0.9) |
| Osceola County 7 | Rural | 145.2 (95.7, 213.4) | 27 (1, 97) | 7 |
stable
|
-0.2 (-2.3, 2.0) |
| Van Buren County 7 | Rural | 119.2 (78.7, 175.4) | 77 (1, 98) | 7 |
stable
|
-1.1 (-3.4, 1.1) |
| Clarke County 7 | Rural | 122.8 (84.5, 172.9) | 67 (1, 98) | 8 |
stable
|
0.8 (-0.9, 2.8) |
| Lucas County 7 | Rural | 126.2 (86.7, 178.8) | 61 (1, 97) | 8 |
stable
|
1.6 (-0.6, 4.0) |
| Palo Alto County 7 | Rural | 127.2 (87.5, 179.5) | 56 (1, 97) | 8 |
stable
|
-0.2 (-1.9, 1.5) |
| Worth County 7 | Rural | 140.6 (96.8, 199.2) | 31 (1, 96) | 8 |
stable
|
0.5 (-1.5, 2.7) |
| Greene County 7 | Rural | 121.1 (83.4, 171.5) | 71 (2, 98) | 8 |
stable
|
-0.1 (-1.8, 1.8) |
| Humboldt County 7 | Rural | 120.1 (82.9, 169.1) | 74 (2, 98) | 8 |
stable
|
-0.1 (-1.7, 1.6) |
| Monona County 7 | Rural | 126.5 (86.9, 178.8) | 60 (1, 97) | 8 |
stable
|
1.4 (-0.5, 3.5) |
| Pocahontas County 7 | Rural | 163.4 (112.5, 230.8) | 6 (1, 95) | 8 |
stable
|
0.5 (-1.0, 2.1) |
| Davis County 7 | Rural | 157.3 (111.3, 216.2) | 11 (1, 93) | 9 |
stable
|
0.7 (-1.6, 3.3) |
| Mitchell County 7 | Rural | 127.9 (89.2, 178.1) | 55 (1, 97) | 9 |
stable
|
-0.3 (-2.1, 1.4) |
| Buena Vista County 7 | Rural | 69.4 (49.4, 94.9) | 97 (78, 98) | 9 |
falling
|
-1.9 (-3.6, -0.3) |
| Emmet County 7 | Rural | 133.0 (93.5, 184.6) | 48 (1, 97) | 9 |
stable
|
0.3 (-1.6, 2.3) |
| Sac County 7 | Rural | 110.8 (76.7, 156.4) | 87 (4, 98) | 9 |
stable
|
-1.0 (-2.8, 0.7) |
| Guthrie County 7 | Urban | 119.6 (84.4, 165.7) | 75 (2, 97) | 9 |
stable
|
-0.2 (-2.0, 1.7) |
| Lyon County 7 | Rural | 131.8 (94.8, 178.7) | 50 (1, 96) | 9 |
rising
|
31.5 (2.3, 61.3) |
| Winnebago County 7 | Rural | 122.6 (86.6, 169.4) | 69 (1, 97) | 9 |
stable
|
1.2 (-0.8, 3.3) |
| Franklin County 7 | Rural | 133.5 (95.9, 182.2) | 43 (1, 96) | 10 |
stable
|
0.6 (-1.1, 2.5) |
| Howard County 7 | Rural | 160.6 (114.2, 219.7) | 8 (1, 94) | 10 |
stable
|
0.4 (-1.6, 2.4) |
| Keokuk County 7 | Rural | 151.1 (108.2, 205.9) | 19 (1, 95) | 10 |
stable
|
1.4 (-0.5, 3.6) |
| Calhoun County 7 | Rural | 135.4 (98.3, 183.7) | 39 (1, 95) | 10 |
stable
|
0.6 (-1.1, 2.3) |
| Louisa County 7 | Rural | 134.9 (98.1, 182.0) | 40 (1, 96) | 10 |
stable
|
-0.2 (-1.7, 1.5) |
| Shelby County 7 | Rural | 115.5 (84.5, 155.4) | 84 (6, 97) | 11 |
stable
|
-0.1 (-7.1, 1.5) |
| Wright County 7 | Rural | 133.0 (96.8, 178.4) | 46 (1, 95) | 11 |
stable
|
-1.5 (-3.2, 0.0) |
| Union County 7 | Rural | 124.5 (92.3, 165.4) | 65 (3, 96) | 11 |
stable
|
-0.8 (-2.3, 0.7) |
| Chickasaw County 7 | Rural | 158.0 (116.9, 209.1) | 12 (1, 91) | 12 |
stable
|
0.8 (-0.7, 2.3) |
| Clay County 7 | Rural | 96.0 (71.5, 126.9) | 93 (29, 98) | 12 |
falling
|
-1.8 (-3.0, -0.7) |
| Page County 7 | Rural | 102.4 (75.4, 136.9) | 91 (17, 98) | 12 |
stable
|
-0.7 (-2.4, 0.9) |
| O'Brien County 7 | Rural | 133.8 (98.4, 177.7) | 42 (1, 95) | 12 |
stable
|
-0.7 (-2.3, 0.8) |
| Allamakee County 7 | Rural | 129.7 (97.0, 170.4) | 52 (2, 95) | 13 |
stable
|
0.8 (-0.7, 2.4) |
| Crawford County 7 | Rural | 120.7 (91.6, 156.5) | 72 (5, 96) | 13 |
stable
|
-0.1 (-1.4, 1.3) |
| Floyd County 7 | Rural | 117.3 (87.8, 153.9) | 80 (5, 97) | 13 |
stable
|
-0.6 (-2.3, 1.2) |
| Mills County 7 | Urban | 127.0 (96.2, 165.4) | 58 (2, 95) | 13 |
stable
|
-0.5 (-2.2, 1.4) |
| Delaware County 7 | Rural | 106.1 (80.2, 138.4) | 89 (16, 97) | 13 |
stable
|
-0.3 (-1.5, 1.1) |
| Appanoose County 7 | Rural | 154.2 (116.1, 201.4) | 13 (1, 90) | 14 |
stable
|
0.7 (-1.3, 2.7) |
| Grundy County 7 | Urban | 161.1 (122.5, 208.6) | 7 (1, 88) | 14 |
stable
|
0.7 (-0.6, 2.1) |
| Butler County 7 | Rural | 128.8 (98.5, 166.5) | 53 (3, 95) | 14 |
stable
|
0.7 (-0.4, 1.9) |
| Kossuth County 7 | Rural | 126.6 (94.5, 166.5) | 59 (3, 96) | 14 |
stable
|
-0.1 (-1.7, 1.5) |
| Cass County 7 | Rural | 136.6 (103.4, 177.9) | 36 (1, 94) | 14 |
stable
|
-0.5 (-1.7, 0.6) |
| Cherokee County 7 | Rural | 168.2 (126.6, 219.8) | 4 (1, 85) | 14 |
stable
|
9.6 (-0.1, 34.8) |
| Hardin County 7 | Rural | 119.7 (90.5, 155.7) | 73 (5, 96) | 14 |
stable
|
0.7 (-0.8, 2.3) |
| Henry County 7 | Rural | 110.7 (85.4, 141.5) | 86 (16, 97) | 15 |
stable
|
-1.0 (-2.3, 0.4) |
| Hamilton County 7 | Rural | 163.0 (125.0, 209.0) | 5 (1, 86) | 15 |
stable
|
0.9 (-0.6, 2.6) |
| Clayton County 7 | Rural | 119.4 (90.5, 154.9) | 78 (5, 96) | 15 |
stable
|
-5.4 (-17.5, 1.2) |
| Jefferson County 7 | Rural | 132.2 (101.1, 170.8) | 49 (1, 95) | 16 |
stable
|
0.5 (-1.1, 2.3) |
| Buchanan County 7 | Rural | 123.6 (96.9, 155.6) | 68 (6, 96) | 16 |
stable
|
0.3 (-0.6, 1.3) |
| Madison County 7 | Urban | 150.4 (118.5, 188.8) | 20 (1, 87) | 16 |
stable
|
0.2 (-1.4, 2.1) |
| Iowa County 7 | Rural | 148.4 (116.6, 186.8) | 23 (1, 89) | 17 |
stable
|
0.4 (-0.9, 1.9) |
| Poweshiek County 7 | Rural | 132.7 (103.5, 167.9) | 47 (2, 94) | 17 |
stable
|
0.8 (-0.9, 2.6) |
| Harrison County 7 | Urban | 172.6 (135.8, 216.9) | 3 (1, 78) | 17 |
rising
|
1.4 (0.3, 2.6) |
| Carroll County 7 | Rural | 117.8 (93.0, 147.8) | 79 (11, 95) | 18 |
stable
|
-0.2 (-1.5, 1.1) |
| Fayette County 7 | Rural | 128.0 (100.8, 160.9) | 54 (4, 94) | 18 |
stable
|
0.1 (-1.1, 1.4) |
| Tama County 7 | Rural | 180.6 (142.9, 225.2) | 1 (1, 66) | 19 |
stable
|
1.4 (-0.1, 3.0) |
| Jones County 7 | Urban | 137.5 (109.4, 171.1) | 34 (2, 92) | 19 |
stable
|
0.4 (-0.6, 1.6) |
| Jackson County 7 | Rural | 147.0 (116.9, 182.9) | 24 (1, 90) | 19 |
stable
|
0.2 (-1.2, 1.8) |
| Cedar County 7 | Rural | 158.6 (127.5, 195.6) | 9 (1, 84) | 20 |
stable
|
1.1 (-0.3, 2.8) |
| Plymouth County 7 | Rural | 124.6 (100.3, 153.3) | 64 (7, 94) | 20 |
stable
|
-0.6 (-1.6, 0.4) |
| Winneshiek County 7 | Rural | 146.3 (116.7, 181.7) | 25 (1, 88) | 20 |
stable
|
0.5 (-0.8, 1.9) |
| Benton County 7 | Urban | 127.1 (102.7, 155.9) | 57 (6, 93) | 21 |
rising
|
1.3 (0.2, 2.8) |
| Dickinson County 7 | Rural | 150.6 (119.2, 188.2) | 18 (1, 87) | 21 |
rising
|
1.0 (0.2, 1.9) |
| Mahaska County 7 | Rural | 154.0 (124.9, 188.1) | 15 (1, 80) | 22 |
stable
|
5.8 (-0.6, 21.3) |
| Bremer County 7 | Urban | 136.9 (111.7, 166.3) | 37 (4, 91) | 23 |
stable
|
-0.3 (-1.3, 0.8) |
| Boone County 7 | Urban | 124.6 (101.7, 151.5) | 63 (9, 93) | 24 |
stable
|
-0.8 (-2.0, 0.3) |
| Washington County 7 | Urban | 174.0 (142.9, 209.9) | 2 (1, 66) | 25 |
rising
|
1.4 (0.3, 2.8) |
| Sioux County 7 | Rural | 139.5 (115.7, 166.9) | 32 (3, 87) | 27 |
stable
|
0.2 (-0.6, 1.2) |
| Lee County 7 | Rural | 118.9 (98.5, 142.5) | 76 (16, 94) | 28 |
stable
|
0.1 (-1.0, 1.2) |
| Webster County 7 | Rural | 124.1 (102.8, 148.6) | 66 (10, 93) | 29 |
stable
|
2.1 (-0.2, 10.8) |
| Marshall County 7 | Rural | 116.9 (98.1, 138.4) | 81 (23, 93) | 30 |
stable
|
-0.4 (-1.5, 0.7) |
| Muscatine County 7 | Rural | 114.7 (96.4, 135.5) | 85 (24, 94) | 30 |
stable
|
-0.1 (-1.2, 1.0) |
| Wapello County 7 | Rural | 134.6 (113.2, 158.9) | 41 (5, 88) | 32 |
stable
|
0.1 (-0.6, 0.9) |
| Marion County 7 | Rural | 154.1 (130.4, 181.1) | 14 (1, 72) | 33 |
stable
|
0.4 (-0.7, 1.6) |
| Des Moines County 7 | Rural | 122.9 (103.9, 144.7) | 70 (15, 92) | 34 |
stable
|
0.7 (-1.8, 8.2) |
| Jasper County 7 | Urban | 149.7 (127.5, 174.8) | 22 (2, 77) | 37 |
stable
|
0.7 (-0.1, 1.6) |
| Cerro Gordo County 7 | Rural | 135.8 (116.3, 157.8) | 38 (7, 85) | 43 |
stable
|
-0.3 (-1.1, 0.7) |
| Clinton County 7 | Rural | 137.2 (118.8, 157.8) | 33 (6, 83) | 45 |
stable
|
0.2 (-0.6, 0.9) |
| Warren County 7 | Urban | 151.9 (133.1, 172.8) | 16 (2, 68) | 50 |
rising
|
1.4 (0.5, 2.4) |
| Story County 7 | Urban | 137.4 (121.4, 154.8) | 35 (9, 81) | 59 |
stable
|
0.1 (-0.6, 0.8) |
| Woodbury County 7 | Urban | 116.3 (104.2, 129.4) | 83 (40, 91) | 72 |
stable
|
-0.5 (-1.1, 0.2) |
| Dallas County 7 | Urban | 144.1 (129.8, 159.5) | 28 (6, 66) | 76 |
stable
|
0.0 (-0.4, 0.6) |
| Dubuque County 7 | Urban | 133.3 (119.8, 147.8) | 44 (15, 79) | 83 |
stable
|
0.7 (0.0, 2.8) |
| Pottawattamie County 7 | Urban | 131.2 (118.3, 145.3) | 51 (17, 80) | 83 |
stable
|
-0.1 (-0.7, 0.6) |
| Johnson County 7 | Urban | 157.9 (144.8, 171.8) | 10 (2, 42) | 114 |
rising
|
0.6 (0.1, 1.2) |
| Black Hawk County 7 | Urban | 150.6 (137.9, 164.2) | 17 (5, 56) | 116 |
rising
|
2.1 (0.9, 6.2) |
| Scott County 7 | Urban | 150.6 (140.0, 161.7) | 21 (6, 52) | 163 |
stable
|
0.1 (-0.5, 0.8) |
| Linn County 7 | Urban | 146.5 (137.3, 156.0) | 26 (9, 53) | 206 |
rising
|
0.6 (0.1, 1.1) |
| Polk County 7 | Urban | 143.9 (137.5, 150.6) | 30 (14, 51) | 394 |
stable
|
0.1 (-0.2, 0.5) |
| Adams County 7 | Rural |
|
|
|
|
|
Notes:
Created by statecancerprofiles.cancer.gov on 03/27/2026 11:00 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.