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Incidence Rates Table

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Incidence Rate Report for California by County

Breast (All Stages^), 2017-2021

All Races (includes Hispanic), Female, All Ages

Sorted by CI*Rank

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 124.0 (123.4, 124.7) N/A 28,216 rising rising trend 0.3 (0.1, 0.6)
US (SEER+NPCR) 1 N/A 129.8 (129.5, 130.0) N/A 258,398 rising rising trend 0.6 (0.4, 0.8)
Marin County 7 Urban 152.2 (144.0, 160.7) 1 (1, 8) 304 stable stable trend 1.7 (-0.6, 6.6)
San Luis Obispo County 7 Urban 146.8 (138.4, 155.7) 2 (1, 15) 275 stable stable trend 0.8 (0.0, 1.5)
Santa Barbara County 7 Urban 145.9 (138.9, 153.1) 3 (1, 13) 361 stable stable trend 0.5 (-0.1, 1.2)
Santa Cruz County 7 Urban 143.9 (135.4, 152.7) 4 (1, 18) 239 rising rising trend 1.2 (0.4, 3.4)
Yolo County 7 Urban 142.7 (132.5, 153.3) 5 (1, 22) 155 rising rising trend 6.8 (1.7, 11.7)
Ventura County 7 Urban 139.0 (134.4, 143.8) 6 (2, 18) 724 rising rising trend 3.7 (0.1, 6.1)
Placer County 7 Urban 138.2 (131.8, 144.8) 7 (2, 22) 385 stable stable trend -0.1 (-0.4, 0.3)
Sonoma County 7 Urban 138.1 (132.3, 144.1) 8 (2, 21) 481 rising rising trend 6.0 (0.4, 9.1)
San Mateo County 7 Urban 136.7 (131.9, 141.5) 9 (3, 22) 658 stable stable trend 0.0 (-0.3, 0.3)
El Dorado County 7 Urban 135.6 (126.3, 145.5) 10 (1, 30) 184 rising rising trend 5.1 (1.9, 7.2)
Contra Costa County 7 Urban 135.5 (131.6, 139.4) 11 (5, 21) 994 rising rising trend 3.2 (0.1, 5.8)
Amador County 7 Rural 134.9 (113.9, 159.0) 12 (1, 46) 42 stable stable trend -0.7 (-2.5, 1.1)
Napa County 7 Urban 134.6 (123.7, 146.2) 13 (1, 33) 125 stable stable trend 0.7 (-4.9, 6.4)
Orange County 7 Urban 132.3 (129.9, 134.7) 14 (10, 23) 2,523 rising rising trend 0.5 (0.2, 1.0)
Butte County 7 Urban 131.9 (122.7, 141.6) 15 (3, 34) 177 stable stable trend -0.2 (-1.0, 0.6)
Tuolumne County 7 Rural 131.0 (114.0, 150.1) 16 (1, 45) 57 stable stable trend 4.2 (-0.5, 13.7)
San Diego County 7 Urban 130.6 (128.2, 133.0) 17 (12, 25) 2,431 stable stable trend 0.1 (-0.2, 1.0)
Stanislaus County 7 Urban 129.9 (124.1, 136.0) 18 (7, 31) 386 rising rising trend 1.1 (0.4, 3.7)
Nevada County 7 Rural 129.8 (117.6, 143.1) 19 (2, 40) 110 stable stable trend -0.5 (-1.5, 0.5)
Calaveras County 7 Rural 128.1 (110.0, 148.8) 20 (1, 49) 49 stable stable trend 5.6 (-0.9, 18.9)
Shasta County 7 Urban 128.0 (118.8, 137.8) 21 (5, 37) 167 stable stable trend 0.4 (-0.4, 1.2)
Inyo County 7 Rural 127.9 (100.1, 161.7) 22 (1, 53) 18 stable stable trend 0.5 (-2.4, 3.4)
Solano County 7 Urban 126.0 (120.0, 132.3) 23 (11, 35) 359 stable stable trend -0.1 (-0.6, 0.3)
Mariposa County 7 Rural 125.9 (97.1, 161.6) 24 (1, 54) 19 stable stable trend -1.1 (-3.4, 1.2)
Sacramento County 7 Urban 125.9 (122.6, 129.3) 25 (16, 32) 1,152 stable stable trend 0.1 (-2.2, 2.2)
Alameda County 7 Urban 125.3 (122.2, 128.6) 26 (17, 33) 1,225 stable stable trend 2.5 (-0.2, 5.2)
Santa Clara County 7 Urban 123.9 (120.9, 127.0) 27 (19, 34) 1,332 stable stable trend 0.7 (-0.2, 3.2)
San Francisco County 7 Urban 123.4 (119.0, 128.0) 28 (17, 36) 614 stable stable trend 0.0 (-0.3, 0.3)
Lake County 7 Rural 120.8 (106.1, 137.1) 29 (4, 51) 59 stable stable trend 0.9 (-5.8, 7.4)
Sutter County 7 Urban 120.0 (107.2, 133.9) 30 (6, 49) 69 stable stable trend 0.0 (-1.5, 1.6)
Los Angeles County 7 Urban 119.8 (118.5, 121.1) 31 (26, 36) 6,932 rising rising trend 0.3 (0.1, 0.7)
Tehama County 7 Rural 119.0 (104.5, 135.1) 32 (5, 52) 55 stable stable trend -0.6 (-1.7, 0.5)
Mono County 7 Rural 117.7 (83.9, 161.3) 33 (1, 55) 9 stable stable trend -0.4 (-3.1, 2.6)
Humboldt County 7 Rural 116.0 (105.4, 127.4) 34 (14, 50) 100 stable stable trend 0.3 (-1.6, 5.8)
San Bernardino County 7 Urban 115.4 (112.6, 118.3) 35 (29, 42) 1,287 stable stable trend 0.3 (-0.1, 1.4)
Glenn County 7 Rural 114.5 (92.2, 140.7) 36 (2, 54) 20 stable stable trend -0.5 (-2.7, 1.7)
Riverside County 7 Urban 113.7 (111.1, 116.3) 37 (30, 44) 1,541 stable stable trend -0.4 (-0.7, 0.0)
Monterey County 7 Urban 113.1 (106.9, 119.5) 38 (27, 48) 263 stable stable trend 0.5 (-3.6, 3.7)
San Joaquin County 7 Urban 112.6 (107.9, 117.4) 39 (29, 47) 461 stable stable trend -0.2 (-0.7, 0.4)
Fresno County 7 Urban 111.7 (107.5, 116.0) 40 (30, 47) 561 stable stable trend 0.3 (-4.9, 4.0)
Mendocino County 7 Rural 111.4 (99.3, 124.6) 41 (17, 53) 73 stable stable trend -1.0 (-2.0, 0.1)
San Benito County 7 Urban 110.7 (95.1, 128.3) 42 (9, 53) 37 stable stable trend 0.5 (-1.6, 2.9)
Lassen County 7 Rural 108.1 (85.2, 135.7) 43 (2, 55) 18 stable stable trend -22.1 (-44.1, 2.0)
Kern County 7 Urban 106.1 (101.7, 110.7) 44 (36, 51) 449 stable stable trend -0.3 (-1.1, 0.4)
Plumas County 7 Rural 105.9 (80.5, 137.4) 45 (2, 55) 17 stable stable trend -0.4 (-2.7, 1.6)
Tulare County 7 Urban 104.8 (98.8, 111.1) 46 (35, 52) 234 stable stable trend 0.0 (-0.5, 1.0)
Siskiyou County 7 Rural 102.9 (86.3, 122.1) 47 (16, 54) 35 stable stable trend -0.1 (-2.5, 2.0)
Kings County 7 Urban 102.0 (91.0, 113.9) 48 (29, 54) 64 stable stable trend -1.0 (-2.2, 0.2)
Imperial County 7 Urban 101.5 (92.1, 111.6) 49 (33, 54) 90 stable stable trend 0.0 (-1.8, 1.8)
Colusa County 7 Rural 100.7 (76.3, 130.5) 50 (5, 56) 12 stable stable trend 0.1 (-3.5, 3.9)
Yuba County 7 Urban 99.9 (86.1, 115.3) 51 (28, 54) 40 falling falling trend -1.7 (-2.9, -0.5)
Merced County 7 Urban 99.0 (91.5, 107.0) 52 (39, 54) 131 stable stable trend -0.4 (-1.3, 0.5)
Madera County 7 Urban 98.3 (89.0, 108.3) 53 (35, 54) 85 stable stable trend -0.5 (-1.4, 0.5)
Trinity County 7 Rural 71.3 (49.3, 101.1) 54 (39, 56) 9 stable stable trend -1.8 (-5.0, 1.2)
Del Norte County 7 Rural 64.3 (46.8, 86.3) 55 (52, 56) 11 falling falling trend -9.3 (-36.5, -3.7)
Modoc County 7 Rural 62.4 (38.6, 99.3) 56 (41, 56) 5 falling falling trend -6.0 (-12.0, -3.8)
Alpine County 7 Rural
*
*
3 or fewer
*
*
Sierra County 7 Rural
*
*
3 or fewer
*
*
Notes:
Created by statecancerprofiles.cancer.gov on 12/05/2024 8:56 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 (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+). 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 in the Surveillance, Epidemiology, and End Results (SEER) Summary/Historic Combined Summary Stage (2004+).
⋔ 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. More information about methodology can be found on the CI*Rank website.

Φ Rural-Urban Continuum Codes provided by the USDA.
* 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. If an average count of 3 is shown, the total number of cases for the time period is 16 or more which exceeds suppression threshold (but is rounded to 3).
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 2023 submission.
7 Source: SEER November 2023 submission.
8 Source: Incidence data provided by the SEER Program. AAPCs are calculated by the Joinpoint Regression Program and are based on APCs. Data are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84,85+). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Population counts for denominators are based on Census populations as modified by NCI. The US Population Data File is used with SEER November 2023 data.

Data for the United States does not include data from Indiana.
Data for the United States does not include Puerto Rico.

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.

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