Incidence Rates Table
Incidence Rate Report for Iowa by County
Breast (Late Stage^), 2018-2022
All Races (includes Hispanic), Female, All Ages
Sorted by CI*Rank
County
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2023 Rural-Urban Continuum Codes Φ
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Age-Adjusted Incidence Rate † cases per 100,000 (95% Confidence Interval)
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CI*Rank ⋔ (95% Confidence Interval) 
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Average Annual Count
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Percent of Cases with Late Stage
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|---|---|---|---|---|---|
| Osceola County 7 | Rural | 82.6 (44.1, 141.8) | 1 (1, 72) | 3 | 51.5 |
| Keokuk County 7 | Rural | 77.8 (46.4, 122.2) | 2 (1, 67) | 4 | 44.9 |
| Washington County 7 | Urban | 75.2 (54.3, 101.3) | 3 (1, 43) | 10 | 39.2 |
| Cherokee County 7 | Rural | 70.6 (42.9, 109.4) | 4 (1, 66) | 5 | 35.7 |
| Worth County 7 | Rural | 69.9 (39.2, 116.7) | 5 (1, 70) | 4 | 47.4 |
| Mahaska County 7 | Rural | 69.2 (49.3, 94.5) | 6 (1, 49) | 9 | 40.7 |
| Chickasaw County 7 | Rural | 69.2 (41.7, 107.8) | 7 (1, 70) | 5 | 40.7 |
| Monona County 7 | Rural | 68.4 (39.7, 110.6) | 8 (1, 71) | 4 | 53.7 |
| Emmet County 7 | Rural | 65.6 (37.5, 107.1) | 9 (1, 73) | 4 | 45.5 |
| Appanoose County 7 | Rural | 58.9 (36.4, 91.1) | 10 (1, 71) | 5 | 36.8 |
| Cass County 7 | Rural | 58.6 (36.5, 89.7) | 11 (1, 71) | 5 | 38.6 |
| Hamilton County 7 | Rural | 58.1 (36.4, 88.0) | 12 (1, 71) | 5 | 36.5 |
| O'Brien County 7 | Rural | 57.9 (35.0, 89.9) | 13 (1, 73) | 5 | 40.0 |
| Clayton County 7 | Rural | 57.2 (37.0, 84.9) | 14 (1, 70) | 7 | 44.0 |
| Wapello County 7 | Rural | 55.9 (42.4, 72.5) | 15 (2, 62) | 13 | 41.1 |
| Tama County 7 | Rural | 54.5 (35.2, 80.9) | 16 (1, 70) | 6 | 31.6 |
| Winneshiek County 7 | Rural | 54.6 (36.1, 79.3) | 17 (1, 70) | 7 | 34.3 |
| Harrison County 7 | Urban | 53.9 (33.9, 81.7) | 18 (1, 73) | 5 | 30.2 |
| Mitchell County 7 | Rural | 52.5 (28.7, 88.3) | 19 (1, 75) | 3 | 39.5 |
| Franklin County 7 | Rural | 51.4 (28.0, 87.3) | 20 (1, 75) | 3 | 34.7 |
| Fayette County 7 | Rural | 50.9 (34.0, 73.7) | 21 (2, 71) | 7 | 39.6 |
| Jefferson County 7 | Rural | 50.8 (32.7, 76.6) | 22 (2, 73) | 6 | 39.7 |
| Palo Alto County 7 | Rural | 50.0 (27.5, 85.3) | 23 (1, 75) | 3 | 42.1 |
| Poweshiek County 7 | Rural | 49.2 (32.3, 72.4) | 24 (2, 72) | 6 | 37.6 |
| Guthrie County 7 | Urban | 48.7 (27.1, 81.8) | 25 (1, 75) | 4 | 39.1 |
| Page County 7 | Rural | 49.0 (30.5, 75.5) | 26 (2, 74) | 5 | 45.8 |
| Sioux County 7 | Rural | 48.6 (34.6, 66.1) | 27 (4, 71) | 9 | 33.1 |
| Grundy County 7 | Urban | 48.6 (27.1, 80.4) | 28 (1, 75) | 3 | 25.0 |
| Iowa County 7 | Rural | 48.1 (30.6, 72.5) | 29 (2, 73) | 5 | 32.1 |
| Howard County 7 | Rural | 48.4 (25.8, 83.5) | 30 (1, 75) | 3 | 32.7 |
| Black Hawk County 7 | Urban | 46.8 (39.5, 55.0) | 31 (12, 58) | 34 | 29.2 |
| Johnson County 7 | Urban | 46.8 (39.7, 54.8) | 32 (13, 58) | 33 | 28.7 |
| Buchanan County 7 | Rural | 46.5 (30.8, 67.7) | 33 (5, 73) | 6 | 38.3 |
| Marion County 7 | Rural | 45.8 (33.1, 61.9) | 34 (7, 70) | 10 | 29.3 |
| Madison County 7 | Urban | 44.9 (27.9, 68.9) | 35 (4, 74) | 5 | 28.4 |
| Jasper County 7 | Urban | 44.9 (32.9, 60.1) | 36 (8, 71) | 11 | 28.5 |
| Bremer County 7 | Urban | 45.2 (31.5, 63.1) | 37 (6, 73) | 8 | 34.8 |
| Union County 7 | Rural | 44.8 (25.9, 73.0) | 38 (2, 75) | 4 | 33.9 |
| Polk County 7 | Urban | 44.1 (40.5, 47.9) | 39 (22, 54) | 117 | 29.8 |
| Cedar County 7 | Rural | 44.0 (28.6, 65.5) | 40 (5, 74) | 6 | 28.4 |
| Cerro Gordo County 7 | Rural | 43.5 (32.1, 57.7) | 41 (9, 71) | 12 | 28.2 |
| Warren County 7 | Urban | 43.3 (33.2, 55.6) | 42 (11, 69) | 13 | 26.5 |
| Story County 7 | Urban | 42.8 (34.0, 53.3) | 43 (13, 67) | 18 | 29.9 |
| Kossuth County 7 | Rural | 42.7 (24.8, 69.0) | 44 (4, 75) | 5 | 33.3 |
| Dickinson County 7 | Rural | 42.3 (25.1, 67.1) | 45 (4, 75) | 5 | 22.6 |
| Allamakee County 7 | Rural | 41.6 (22.9, 69.7) | 46 (2, 75) | 3 | 27.0 |
| Pottawattamie County 7 | Urban | 41.3 (34.1, 49.6) | 47 (19, 67) | 26 | 30.8 |
| Webster County 7 | Rural | 41.0 (29.2, 56.1) | 48 (10, 73) | 10 | 34.0 |
| Butler County 7 | Rural | 41.0 (24.0, 66.2) | 49 (4, 75) | 4 | 29.0 |
| Sac County 7 | Rural | 40.4 (21.4, 71.2) | 50 (3, 75) | 3 | 38.6 |
| Dallas County 7 | Urban | 40.9 (33.4, 49.5) | 51 (18, 67) | 21 | 28.3 |
| Scott County 7 | Urban | 40.8 (35.3, 46.8) | 52 (23, 64) | 43 | 26.4 |
| Linn County 7 | Urban | 40.7 (35.9, 46.0) | 53 (26, 63) | 55 | 26.9 |
| Clinton County 7 | Rural | 40.6 (30.4, 53.2) | 54 (14, 72) | 12 | 27.1 |
| Hardin County 7 | Rural | 40.5 (23.4, 65.2) | 55 (4, 75) | 4 | 27.8 |
| Muscatine County 7 | Rural | 40.5 (29.5, 54.3) | 56 (12, 72) | 10 | 32.2 |
| Lee County 7 | Rural | 39.6 (27.2, 55.6) | 57 (9, 74) | 8 | 27.5 |
| Benton County 7 | Urban | 37.8 (24.7, 55.4) | 58 (10, 75) | 6 | 28.3 |
| Shelby County 7 | Rural | 37.1 (19.6, 64.8) | 59 (4, 75) | 3 | 29.6 |
| Des Moines County 7 | Rural | 36.1 (25.6, 49.6) | 60 (15, 74) | 9 | 26.2 |
| Mills County 7 | Urban | 35.5 (19.7, 59.6) | 61 (6, 75) | 3 | 26.2 |
| Boone County 7 | Urban | 35.0 (23.4, 50.8) | 62 (15, 75) | 7 | 27.7 |
| Plymouth County 7 | Rural | 35.0 (22.7, 51.8) | 63 (14, 75) | 6 | 28.4 |
| Dubuque County 7 | Urban | 34.6 (27.6, 42.8) | 64 (30, 72) | 19 | 23.2 |
| Woodbury County 7 | Urban | 33.4 (27.0, 40.8) | 65 (34, 73) | 21 | 28.7 |
| Jackson County 7 | Rural | 33.0 (20.2, 51.6) | 66 (13, 75) | 5 | 23.7 |
| Floyd County 7 | Rural | 32.6 (17.4, 55.8) | 67 (9, 75) | 3 | 25.0 |
| Jones County 7 | Urban | 31.9 (19.0, 50.8) | 68 (15, 75) | 4 | 21.9 |
| Crawford County 7 | Rural | 29.3 (17.0, 48.3) | 69 (20, 75) | 3 | 26.6 |
| Marshall County 7 | Rural | 28.7 (19.8, 40.4) | 70 (33, 75) | 7 | 24.3 |
| Buena Vista County 7 | Rural | 28.3 (15.7, 46.9) | 71 (15, 75) | 3 | 38.6 |
| Delaware County 7 | Rural | 26.7 (14.7, 45.2) | 72 (22, 75) | 3 | 25.4 |
| Henry County 7 | Rural | 23.7 (13.2, 39.9) | 73 (33, 75) | 3 | 21.9 |
| Clay County 7 | Rural | 24.3 (13.6, 41.2) | 74 (34, 75) | 3 | 28.8 |
| Carroll County 7 | Rural | 18.6 (10.8, 31.3) | 75 (59, 75) | 4 | 20.0 |
| Adair County 7 | Rural |
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| Adams County 7 | Rural |
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| Audubon County 7 | Rural |
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| Calhoun County 7 | Rural |
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| Clarke County 7 | Rural |
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| Davis County 7 | Rural |
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| Decatur County 7 | Rural |
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| Fremont County 7 | Rural |
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| Greene County 7 | Rural |
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| Hancock County 7 | Rural |
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| Humboldt County 7 | Rural |
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| Ida County 7 | Rural |
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| Louisa County 7 | Rural |
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| Lucas County 7 | Rural |
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| Lyon County 7 | Rural |
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| Monroe County 7 | Rural |
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| Montgomery 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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| Van Buren County 7 | Rural |
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| Wayne County 7 | Rural |
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| Winnebago County 7 | Rural |
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| Wright County 7 | Rural |
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Notes:
Created by statecancerprofiles.cancer.gov on 03/22/2026 7:14 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 are computed using cancers classified as malignant based on ICD-O-3. For more information see malignant.html.
^ Late Stage is defined as cases determined to be regional or distant. 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.
⋔ Results presented with the CI*Rank statistics help show the usefulness of ranks. For example, ranks for relatively rare diseases or less populated areas may be essentially meaningless because of their large variability, but ranks for more common diseases in densely populated regions can be very useful. The rates used in CI*Rank are all age-adjusted to the 2000 US standard population using 19 age groups for SEER and NPCR areas. More information about methodology can be found on the CI*Rank website.
When displaying county information, the CI*Rank for the state is not shown because it's not comparable. To see the state CI*Rank please view the statistics at the US By State level.
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.