Incidence Rates Table
Incidence Rate Report for California by County
Thyroid (Late Stage^), 2018-2022
All Races (includes Hispanic), Both Sexes, 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 | 4.7 (4.6, 4.8) | N/A | 1,932 | 37.0 |
| US (SEER+NPCR) 1 | N/A | 4.1 (4.1, 4.1) | N/A | 14,253 | 31.4 |
| San Luis Obispo County 7 | Urban | 2.8 (1.9, 3.9) | 39 (24, 39) | 8 | 31.5 |
| Butte County 7 | Urban | 3.1 (2.1, 4.4) | 38 (16, 39) | 7 | 26.4 |
| Napa County 7 | Urban | 3.4 (2.1, 5.1) | 37 (6, 39) | 5 | 31.3 |
| Fresno County 7 | Urban | 3.5 (3.0, 4.1) | 36 (23, 39) | 34 | 31.5 |
| Solano County 7 | Urban | 3.7 (3.0, 4.6) | 35 (13, 39) | 19 | 29.5 |
| Tulare County 7 | Urban | 3.7 (3.0, 4.6) | 34 (12, 39) | 16 | 33.5 |
| Alameda County 7 | Urban | 3.7 (3.3, 4.2) | 33 (22, 38) | 67 | 35.9 |
| Kings County 7 | Urban | 3.8 (2.5, 5.5) | 32 (2, 39) | 6 | 28.2 |
| Monterey County 7 | Urban | 3.8 (3.0, 4.8) | 31 (10, 39) | 17 | 37.2 |
| Shasta County 7 | Urban | 4.1 (2.9, 5.6) | 30 (2, 39) | 8 | 41.2 |
| Humboldt County 7 | Rural | 4.1 (2.7, 5.9) | 29 (1, 39) | 6 | 32.6 |
| Santa Cruz County 7 | Urban | 4.1 (3.1, 5.4) | 28 (2, 39) | 11 | 32.9 |
| Sutter County 7 | Urban | 4.2 (2.5, 6.5) | 27 (1, 39) | 4 | 37.7 |
| Merced County 7 | Urban | 4.2 (3.1, 5.5) | 26 (2, 39) | 11 | 36.2 |
| Sonoma County 7 | Urban | 4.2 (3.5, 5.1) | 25 (6, 38) | 23 | 41.1 |
| Stanislaus County 7 | Urban | 4.2 (3.5, 5.1) | 24 (6, 37) | 23 | 29.9 |
| Madera County 7 | Urban | 4.3 (2.9, 6.1) | 23 (1, 39) | 6 | 36.8 |
| Sacramento County 7 | Urban | 4.4 (3.9, 4.8) | 22 (11, 34) | 72 | 38.7 |
| Riverside County 7 | Urban | 4.4 (4.0, 4.7) | 21 (12, 32) | 109 | 34.1 |
| San Diego County 7 | Urban | 4.5 (4.2, 4.9) | 20 (11, 29) | 156 | 36.4 |
| Yolo County 7 | Urban | 4.6 (3.3, 6.1) | 19 (1, 38) | 10 | 35.5 |
| San Francisco County 7 | Urban | 4.7 (4.1, 5.4) | 18 (3, 31) | 45 | 38.3 |
| San Bernardino County 7 | Urban | 4.7 (4.3, 5.2) | 17 (6, 28) | 101 | 34.3 |
| Contra Costa County 7 | Urban | 4.8 (4.2, 5.3) | 16 (4, 29) | 61 | 39.1 |
| Marin County 7 | Urban | 4.8 (3.6, 6.1) | 15 (1, 37) | 14 | 42.7 |
| Santa Barbara County 7 | Urban | 4.8 (3.9, 5.8) | 14 (1, 35) | 21 | 39.2 |
| Los Angeles County 7 | Urban | 4.9 (4.7, 5.1) | 13 (8, 21) | 519 | 38.7 |
| Mendocino County 7 | Rural | 5.1 (3.1, 7.7) | 12 (1, 39) | 5 | 34.3 |
| Imperial County 7 | Urban | 5.1 (3.7, 6.9) | 11 (1, 37) | 9 | 46.4 |
| Santa Clara County 7 | Urban | 5.2 (4.8, 5.7) | 10 (2, 20) | 106 | 39.6 |
| Ventura County 7 | Urban | 5.4 (4.7, 6.1) | 9 (1, 24) | 46 | 35.6 |
| El Dorado County 7 | Urban | 5.4 (4.0, 7.0) | 8 (1, 35) | 13 | 41.8 |
| San Joaquin County 7 | Urban | 5.4 (4.7, 6.2) | 7 (1, 25) | 41 | 40.3 |
| Orange County 7 | Urban | 5.4 (5.0, 5.7) | 6 (1, 17) | 182 | 38.4 |
| Nevada County 7 | Rural | 5.5 (3.5, 8.1) | 5 (1, 39) | 6 | 41.3 |
| Kern County 7 | Urban | 5.5 (4.8, 6.3) | 4 (1, 21) | 48 | 34.2 |
| Placer County 7 | Urban | 5.7 (4.7, 6.8) | 3 (1, 26) | 24 | 36.1 |
| San Mateo County 7 | Urban | 5.7 (5.0, 6.5) | 2 (1, 19) | 48 | 38.3 |
| San Benito County 7 | Urban | 6.0 (3.6, 9.3) | 1 (1, 39) | 4 | 40.0 |
| Alpine County 7 | Rural |
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| Amador County 7 | Rural |
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| Calaveras County 7 | Rural |
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| Colusa County 7 | Rural |
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| Del Norte County 7 | Rural |
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| Glenn County 7 | Rural |
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| Inyo County 7 | Rural |
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| Lake County 7 | Rural |
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| Lassen County 7 | Rural |
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| Mariposa County 7 | Rural |
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| Modoc County 7 | Rural |
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| Mono County 7 | Rural |
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| Plumas County 7 | Rural |
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| Sierra County 7 | Rural |
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| Siskiyou County 7 | Rural |
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| Tehama County 7 | Rural |
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| Trinity County 7 | Rural |
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| Tuolumne County 7 | Rural |
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| Yuba County 7 | Urban |
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Notes:
Created by statecancerprofiles.cancer.gov on 03/21/2026 4:50 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.
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.