Return to Home Incidence > Table

Incidence Rates Table

Data Options
Comparison Options

Incidence Rate Report for California by County

Breast (in situ) (All Stages^), 2018-2022

All Races (includes Hispanic), Female, All Ages

Sorted by Recentaapc

County
 sort alphabetically by name ascending
2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Age-Adjusted Incidence Rate
cases per 100,000
(95% Confidence Interval)
 sort by rate descending
CI*Rank
(95% Confidence Interval)
 sort by CI rank descending
Average Annual Count
 sort by count descending
Recent Trend
Recent 5-Year Trend in Incidence Rates
(95% Confidence Interval)
 sort by trend descending
California 7 N/A 27.1 (26.8, 27.4) N/A 6,162 stable stable trend -0.3 (-1.5, 0.1)
US (SEER+NPCR) 1 N/A 29.8 (29.7, 29.9) N/A 60,125 stable stable trend 1.6 (-0.3, 3.5)
Kern County 7 Urban 15.4 (13.8, 17.2) 42 (36, 46) 67 falling falling trend -11.1 (-19.4, -4.3)
Tuolumne County 7 Rural 14.8 (9.6, 22.3) 43 (23, 47) 6 falling falling trend -5.0 (-8.1, -2.5)
Solano County 7 Urban 22.6 (20.1, 25.4) 27 (18, 36) 64 falling falling trend -4.5 (-12.2, -0.9)
Placer County 7 Urban 30.0 (27.1, 33.2) 9 (2, 23) 84 falling falling trend -3.8 (-7.2, -2.0)
Calaveras County 7 Rural 18.0 (12.3, 26.2) 37 (14, 47) 8 falling falling trend -3.3 (-6.2, -0.6)
Yuba County 7 Urban 25.3 (18.7, 33.4) 21 (2, 42) 10 falling falling trend -3.3 (-6.2, -0.6)
Imperial County 7 Urban 10.7 (7.9, 14.1) 47 (41, 47) 10 falling falling trend -3.2 (-5.3, -1.2)
Humboldt County 7 Rural 12.5 (9.1, 16.6) 46 (36, 47) 11 falling falling trend -3.1 (-5.6, -1.0)
Riverside County 7 Urban 22.7 (21.6, 23.9) 26 (21, 32) 317 falling falling trend -2.9 (-6.5, -0.9)
Marin County 7 Urban 31.6 (27.9, 35.7) 5 (2, 21) 60 falling falling trend -2.7 (-10.2, -0.3)
Sacramento County 7 Urban 27.9 (26.4, 29.5) 17 (8, 23) 260 falling falling trend -2.4 (-6.9, -0.6)
Lake County 7 Rural 18.6 (13.2, 25.6) 36 (16, 47) 9 stable stable trend -1.9 (-5.5, 1.7)
Mendocino County 7 Rural 16.4 (12.0, 22.1) 41 (23, 47) 11 stable stable trend -1.8 (-4.5, 0.9)
Ventura County 7 Urban 26.6 (24.6, 28.7) 19 (10, 26) 137 falling falling trend -1.8 (-4.8, -0.8)
Napa County 7 Urban 28.1 (23.2, 33.8) 16 (2, 32) 26 stable stable trend -1.6 (-3.9, 0.6)
Amador County 7 Rural 22.9 (14.4, 35.0) 25 (1, 47) 6 stable stable trend -1.5 (-5.5, 2.2)
Monterey County 7 Urban 17.9 (15.4, 20.5) 38 (28, 44) 41 falling falling trend -1.5 (-3.2, -0.5)
El Dorado County 7 Urban 28.9 (24.5, 33.8) 14 (2, 27) 37 stable stable trend -1.2 (-2.9, 0.6)
Fresno County 7 Urban 19.7 (18.0, 21.5) 33 (25, 41) 101 falling falling trend -1.2 (-2.0, -0.2)
San Luis Obispo County 7 Urban 22.3 (19.0, 25.9) 28 (16, 39) 41 stable stable trend -1.1 (-2.6, 0.5)
Yolo County 7 Urban 29.7 (25.2, 34.8) 10 (2, 27) 32 stable stable trend -1.1 (-2.7, 0.6)
San Joaquin County 7 Urban 18.8 (17.0, 20.8) 35 (27, 42) 80 stable stable trend -1.0 (-2.1, 0.2)
Sutter County 7 Urban 31.1 (24.8, 38.5) 7 (1, 29) 18 stable stable trend -0.7 (-4.2, 3.1)
Tehama County 7 Rural 19.0 (13.5, 26.3) 34 (12, 47) 9 stable stable trend -0.7 (-3.6, 2.5)
Merced County 7 Urban 13.6 (10.9, 16.7) 45 (37, 47) 18 stable stable trend -0.6 (-2.8, 2.0)
San Benito County 7 Urban 25.3 (18.3, 34.3) 22 (2, 43) 9 stable stable trend -0.5 (-2.6, 2.3)
San Bernardino County 7 Urban 20.1 (19.0, 21.3) 32 (26, 38) 233 stable stable trend -0.5 (-1.2, 0.3)
Shasta County 7 Urban 21.5 (17.8, 25.7) 31 (16, 41) 29 stable stable trend -0.5 (-2.9, 2.1)
Tulare County 7 Urban 17.7 (15.3, 20.3) 39 (28, 44) 40 stable stable trend -0.5 (-2.0, 1.2)
Nevada County 7 Rural 24.9 (19.7, 31.2) 23 (3, 39) 21 stable stable trend -0.4 (-2.7, 2.0)
Alameda County 7 Urban 29.0 (27.5, 30.6) 12 (6, 20) 286 stable stable trend -0.2 (-2.4, 0.8)
Santa Barbara County 7 Urban 26.8 (23.7, 30.0) 18 (6, 29) 63 stable stable trend -0.2 (-1.6, 1.2)
Santa Cruz County 7 Urban 24.0 (20.6, 27.9) 24 (10, 36) 38 stable stable trend -0.1 (-1.3, 1.2)
Madera County 7 Urban 17.2 (13.5, 21.7) 40 (24, 46) 15 stable stable trend 0.1 (-2.0, 2.5)
San Mateo County 7 Urban 38.5 (36.0, 41.2) 1 (1, 3) 178 stable stable trend 0.1 (-0.5, 0.6)
Siskiyou County 7 Rural 13.8 (7.6, 23.0) 44 (19, 47) 4 stable stable trend 0.2 (-3.8, 4.2)
Butte County 7 Urban 29.0 (24.8, 33.7) 13 (2, 28) 38 stable stable trend 0.5 (-1.3, 2.5)
Los Angeles County 7 Urban 28.3 (27.6, 28.9) 15 (10, 20) 1,642 rising rising trend 0.8 (0.5, 1.1)
Orange County 7 Urban 31.2 (30.0, 32.4) 6 (3, 13) 596 rising rising trend 0.8 (0.4, 1.2)
San Francisco County 7 Urban 33.5 (31.2, 36.0) 3 (1, 11) 162 rising rising trend 0.8 (0.2, 1.5)
Stanislaus County 7 Urban 21.7 (19.3, 24.2) 30 (21, 38) 64 stable stable trend 0.9 (-0.4, 2.4)
Kings County 7 Urban 21.9 (17.1, 27.7) 29 (9, 43) 14 stable stable trend 1.3 (-0.8, 3.9)
San Diego County 7 Urban 33.1 (31.9, 34.3) 4 (2, 8) 607 rising rising trend 3.5 (1.2, 7.4)
Santa Clara County 7 Urban 29.6 (28.2, 31.1) 11 (4, 18) 318 rising rising trend 6.4 (3.7, 8.7)
Contra Costa County 7 Urban 30.8 (29.0, 32.7) 8 (3, 17) 229 rising rising trend 6.9 (1.7, 10.7)
Sonoma County 7 Urban 26.5 (23.9, 29.2) 20 (8, 28) 88 rising rising trend 6.9 (1.9, 17.9)
Glenn County 7 Rural 34.6 (22.7, 50.7) 2 (1, 40) 6
*
*
Alpine County 7 Rural
*
*
3 or fewer
*
*
Colusa County 7 Rural
*
*
3 or fewer
*
*
Del Norte County 7 Rural
*
*
3 or fewer
*
*
Inyo County 7 Rural
*
*
3 or fewer
*
*
Lassen County 7 Rural
*
*
3 or fewer
*
*
Mariposa County 7 Rural
*
*
3 or fewer
*
*
Modoc County 7 Rural
*
*
3 or fewer
*
*
Mono County 7 Rural
*
*
3 or fewer
*
*
Plumas County 7 Rural
*
*
3 or fewer
*
*
Sierra County 7 Rural
*
*
3 or fewer
*
*
Trinity County 7 Rural
*
*
3 or fewer
*
*

Notes:
Created by statecancerprofiles.cancer.gov on 03/17/2026 3:00 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.


† 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.

‡ Incidence data come from different sources. The Average Annual Percent Change (AAPC) is based on the APCs calculated by Joinpoint. Due to data availability issues, the time period used in the calculation of the joinpoint regression model may differ for selected counties.

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.

⋔ 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.

Return to Top