Incidence Rates Table
Incidence Rate Report for California by County
Breast (Late Stage^), 2018-2022
All Races (includes Hispanic), Female, All Ages
Sorted by Rate
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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|---|---|---|---|---|---|
| California 7 | N/A | 41.6 (41.2, 42.0) | N/A | 9,285 | 32.2 |
| US (SEER+NPCR) 1 | N/A | 42.4 (42.3, 42.5) | N/A | 83,714 | 31.0 |
| Siskiyou County 7 | Rural | 28.2 (19.2, 39.9) | 53 (9, 53) | 8 | 20.5 |
| Plumas County 7 | Rural | 29.2 (16.1, 49.2) | 52 (1, 53) | 4 | 23.6 |
| Del Norte County 7 | Rural | 30.3 (18.3, 47.1) | 51 (2, 53) | 5 | 41.1 |
| Kings County 7 | Urban | 31.0 (24.9, 38.1) | 50 (25, 53) | 19 | 27.1 |
| Yuba County 7 | Urban | 32.1 (24.6, 41.2) | 49 (12, 53) | 13 | 33.0 |
| Madera County 7 | Urban | 33.1 (27.7, 39.1) | 48 (24, 53) | 28 | 33.0 |
| Tulare County 7 | Urban | 36.1 (32.6, 39.8) | 47 (24, 51) | 81 | 34.1 |
| Mendocino County 7 | Rural | 36.4 (29.4, 44.6) | 46 (6, 53) | 23 | 30.6 |
| Sutter County 7 | Urban | 36.5 (29.6, 44.6) | 45 (5, 53) | 21 | 29.4 |
| Lassen County 7 | Rural | 37.2 (23.9, 55.4) | 44 (1, 53) | 6 | 36.4 |
| Tuolumne County 7 | Rural | 37.5 (28.9, 48.1) | 43 (2, 53) | 17 | 28.5 |
| San Francisco County 7 | Urban | 37.7 (35.2, 40.3) | 42 (24, 48) | 182 | 28.0 |
| Imperial County 7 | Urban | 37.7 (32.1, 44.0) | 41 (8, 52) | 34 | 38.7 |
| Kern County 7 | Urban | 38.0 (35.4, 40.8) | 40 (22, 49) | 161 | 36.3 |
| San Mateo County 7 | Urban | 38.1 (35.6, 40.8) | 39 (21, 48) | 176 | 25.7 |
| Shasta County 7 | Urban | 38.4 (33.2, 44.3) | 38 (8, 51) | 45 | 26.7 |
| Tehama County 7 | Rural | 38.4 (30.0, 48.6) | 37 (2, 53) | 16 | 30.5 |
| Fresno County 7 | Urban | 38.5 (36.1, 41.1) | 36 (20, 47) | 192 | 32.5 |
| Riverside County 7 | Urban | 38.6 (37.1, 40.2) | 35 (26, 45) | 519 | 32.6 |
| Merced County 7 | Urban | 39.3 (34.6, 44.5) | 34 (8, 50) | 51 | 36.0 |
| Placer County 7 | Urban | 40.1 (36.6, 43.8) | 33 (10, 47) | 107 | 27.4 |
| Amador County 7 | Rural | 40.4 (29.4, 54.8) | 32 (1, 53) | 12 | 30.2 |
| Butte County 7 | Urban | 40.7 (35.5, 46.4) | 31 (4, 49) | 51 | 29.4 |
| San Benito County 7 | Urban | 40.8 (31.7, 51.8) | 30 (1, 52) | 14 | 34.6 |
| Inyo County 7 | Rural | 41.0 (27.0, 60.9) | 29 (1, 53) | 6 | 34.4 |
| Orange County 7 | Urban | 41.1 (39.8, 42.5) | 28 (16, 37) | 771 | 30.3 |
| Sacramento County 7 | Urban | 41.2 (39.3, 43.2) | 27 (13, 39) | 370 | 31.8 |
| Stanislaus County 7 | Urban | 41.3 (38.0, 44.8) | 26 (8, 44) | 121 | 31.6 |
| Los Angeles County 7 | Urban | 41.7 (40.9, 42.5) | 24 (17, 34) | 2,381 | 33.2 |
| San Joaquin County 7 | Urban | 41.7 (38.9, 44.7) | 25 (9, 42) | 170 | 35.3 |
| Monterey County 7 | Urban | 41.9 (38.2, 46.0) | 23 (5, 45) | 96 | 35.3 |
| Alameda County 7 | Urban | 42.0 (40.1, 43.9) | 22 (11, 36) | 402 | 32.4 |
| Santa Clara County 7 | Urban | 42.1 (40.3, 43.9) | 21 (11, 36) | 447 | 32.4 |
| Santa Barbara County 7 | Urban | 42.5 (38.7, 46.6) | 20 (5, 43) | 101 | 28.6 |
| San Bernardino County 7 | Urban | 42.9 (41.2, 44.7) | 19 (9, 33) | 483 | 36.8 |
| San Luis Obispo County 7 | Urban | 43.0 (38.4, 48.1) | 18 (3, 44) | 77 | 29.4 |
| Calaveras County 7 | Rural | 43.1 (32.5, 56.4) | 17 (1, 52) | 15 | 30.3 |
| Colusa County 7 | Rural | 43.4 (27.5, 65.2) | 16 (1, 53) | 5 | 33.3 |
| Nevada County 7 | Rural | 43.4 (35.9, 52.2) | 15 (1, 50) | 32 | 29.1 |
| San Diego County 7 | Urban | 43.9 (42.5, 45.3) | 14 (8, 26) | 801 | 32.7 |
| Contra Costa County 7 | Urban | 43.9 (41.7, 46.2) | 13 (6, 30) | 311 | 30.2 |
| Solano County 7 | Urban | 45.5 (41.8, 49.5) | 11 (2, 33) | 124 | 34.0 |
| Sonoma County 7 | Urban | 45.6 (42.2, 49.3) | 12 (2, 32) | 148 | 29.7 |
| Marin County 7 | Urban | 46.0 (41.3, 51.1) | 10 (1, 37) | 84 | 28.3 |
| El Dorado County 7 | Urban | 46.4 (40.9, 52.6) | 9 (1, 40) | 59 | 30.3 |
| Mariposa County 7 | Rural | 46.6 (28.6, 72.2) | 8 (1, 53) | 6 | 29.5 |
| Ventura County 7 | Urban | 46.9 (44.2, 49.8) | 7 (2, 22) | 237 | 32.4 |
| Santa Cruz County 7 | Urban | 47.0 (42.1, 52.3) | 6 (1, 33) | 75 | 30.5 |
| Lake County 7 | Rural | 47.3 (37.9, 58.4) | 5 (1, 48) | 21 | 35.7 |
| Napa County 7 | Urban | 48.9 (42.3, 56.3) | 4 (1, 38) | 43 | 33.0 |
| Humboldt County 7 | Rural | 49.6 (42.7, 57.4) | 3 (1, 36) | 41 | 40.1 |
| Glenn County 7 | Rural | 51.0 (36.2, 69.9) | 1 (1, 52) | 8 | 39.6 |
| Yolo County 7 | Urban | 51.1 (45.1, 57.7) | 2 (1, 24) | 55 | 34.4 |
| Alpine County 7 | Rural |
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| Modoc County 7 | Rural |
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| Mono County 7 | Rural |
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| Sierra County 7 | Rural |
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| Trinity County 7 | Rural |
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Notes:
Created by statecancerprofiles.cancer.gov on 03/11/2026 1:08 pm.
State Cancer Registries may provide more current or more local data.
Trend
Rising when 95% confidence interval of average annual percent change is above 0.
Stable when 95% confidence interval of average annual percent change includes 0.
Falling when 95% confidence interval of average annual percent change is below 0.
Rising when 95% confidence interval of average annual percent change is above 0.
Stable when 95% confidence interval of average annual percent change includes 0.
Falling when 95% confidence interval of average annual percent change is below 0.
† 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.
1 Source: National Program of Cancer Registries and Surveillance, Epidemiology, and End Results SEER*Stat Database - United States Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute. Based on the 2024 submission.
7 Source: SEER November 2024 submission.
* 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.