There are 19 standardized rating regions in California.
| Region | Counties |
|---|---|
| Rating region 1 Rural North/Sierra |
Alpine, Del Norte, Siskiyou, Modoc, Lassen, Shasta, Trinity, Humboldt, Tehama, Plumas, Nevada, Sierra, Mendocino, Lake, Butte, Glenn, Sutter, Yuba, Colusa, Amador, Calaveras, Turolumne |
| Rating region 2 Wine Country |
Napa, Sonoma, Solano, Marin |
| Rating region 3 Greater Sacramento region |
Sacramento, Placer, El Dorado, Yolo |
| Rating region 4 San Francisco |
San Francisco |
| Rating region 5 Contra Costa |
Contra Costa |
| Rating region 6 Alameda |
Alameda |
| Rating region 7 Santa Clara |
Santa Clara |
| Rating region 8 San Mateo |
San Mateo |
| Rating region 9 Monterey Bay |
Santa Cruz, Monterey, San Benitio |
| Rating region 10 Central Valley North |
San Joaquin, Stanislalus, Merced, Mariposa, Tulare |
| Rating region 11 Central Valley South |
Madera, Fresno, Kings |
| Rating region 12 South Coast |
San Luis Obispo, Santa Barbara, Ventura |
| Rating region 13 Southern Desert |
Mono, Inyo, Imperial |
| Rating region 14 Kern |
Kern |
| Rating region 15 Los Angeles East |
Los Angeles ZIP codes starting with 906-912, 915, 917, 918, 935 |
| Rating region 16 Los Angeles West |
Los Angeles not including ZIP codes above. |
| Rating region 17 Inland Empire |
San Bernardino, Riverside |
| Rating region 18 Orange County |
Orange County |
| Rating region 19 San Diego |
San Diego |
Rating period: October 1, 2026 to December 31, 2026
Rate Disclosures – October 1, 2026 to December 31, 2026 (PDF, 1.6 MB)
Rating period: July 1, 2026 to September 30, 2026
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 7.5 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 228 KB)
Rate book 1 (includes region 1) (PDF, 704 KB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 2.7 MB)
Rate book 3 (includes region 3) (PDF, 775 KB)
Rate book 4 (includes regions 10, 11) (PDF, 1.1 MB)
Rate Book 5 (includes region 12) (PDF, 746 KB)
Rate book 6 (includes region 13) (PDF, 645 KB)
Rate book 7 (includes region 14) (PDF, 746 KB)
Rate book 8 (includes regions 15, 16) (PDF, 1.2 MB)
Rate book 9 (includes region 9) (PDF, 748 KB)
Rate book 10 (includes region 17) (PDF, 745 KB)
Rate book 11 (includes regions 18, 19) (PDF, 1.2 MB)
Rate Disclosures – July 1, 2026 to September 30, 2026 (PDF, 1.7 MB)
Rating period: April 1, 2026 to June 30, 2026
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 7.5 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 171 KB)
Rate book 1 (includes region 1) (PDF, 688 KB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 2.7 MB)
Rate book 3 (includes region 3) (PDF, 732 KB)
Rate book 4 (includes regions 10, 11) (PDF, 1.0 MB)
Rate book 5 (includes region 12) (PDF, 733 KB)
Rate book 6 (includes region 13) (PDF, 631 KB)
Rate book 7 (includes region 14) (PDF, 732 KB)
Rate book 8 (includes regions 15, 16) (PDF, 1.1 MB)
Rate book 9 (includes region 9) (PDF, 734 KB)
Rate book 10 (includes region 17) (PDF, 732 KB)
Rate book 11 (includes regions 18, 19) (PDF, 1.2 MB)
Rating period: January 1, 2026 to March 31, 2026
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 7.5 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 171 KB)
Rate book 1 (includes region 1) (PDF, 688 KB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 2.6 MB)
Rate book 3 (includes region 3) (PDF, 732 KB)
Rate book 4 (includes regions 10, 11) (PDF, 1.0 MB)
Rate book 5 (includes region 12) (PDF, 733 KB)
Rate book 6 (includes region 13) (PDF, 631 KB)
Rate book 7 (includes region 14) (PDF, 732 KB)
Rate book 8 (includes regions 15, 16) (PDF, 1.1 MB)
Rate book 9 (includes region 9) (PDF, 734 KB)
Rate book 10 (includes region 17) (PDF, 732 KB)
Rate book 11 (includes regions 18, 19) (PDF, 1.1 MB)
Rating period: October 1, 2025 to December 31, 2025
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 7.5 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 228 KB)
Rate book 1 (includes region 1) (PDF, 704 KB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 2.7 MB)
Rate book 3 (includes region 3) (PDF, 775 KB)
Rate book 4 (includes regions 10, 11) (PDF, 1.1 MB)
Rate Book 5 (includes region 12) (PDF, 746 KB)
Rate book 6 (includes region 13) (PDF, 645 KB)
Rate book 7 (includes region 14) (PDF, 746 KB)
Rate book 8 (includes regions 15, 16) (PDF, 1.2 MB)
Rate book 9 (includes region 9) (PDF, 748 KB)
Rate book 10 (includes region 17) (PDF, 745 KB)
Rate book 11 (includes regions 18, 19) (PDF, 1.2 MB)
Rating period: July 1, 2025 to September 30, 2025
Rate disclosures – July 1, 2025 to September 30, 2025 (PDF, 1.7 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 203 KB)
Rate book 1 (includes region 1) (PDF, 661 KB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 2.7 MB)
Rate book 3 (includes region 3) (PDF, 704 KB)
Rate book 4 (includes regions 10, 11) (PDF, 1.1 MB)
Rate Book 5 (includes region 12) (PDF, 705 KB)
Rate book 6 (includes region 13) (PDF, 601 KB)
Rate book 7 (includes region 14) (PDF, 704 KB)
Rate book 8 (includes regions 15, 16) (PDF, 1.2 MB)
Rate book 9 (includes region 9) (PDF, 706 KB)
Rate book 10 (includes region 17) (PDF, 704 KB)
Rate book 11 (includes regions 18, 19) (PDF, 1.2 MB)
Rate disclosures – July 1, 2025 to September 30, 2025 (PDF, 1.7 MB)
Rating period: April 1, 2025 to June 30, 2025
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 7.4 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 197 KB)
Rate book 1 (includes region 1) (PDF, 646 KB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 2.6 MB)
Rate book 3 (includes region 3) (PDF, 688 KB)
Rate book 4 (includes regions 10, 11) (PDF, 1.0 MB)
Rate book 5 (includes region 12) (PDF, 689 KB)
Rate book 6 (includes region 13) (PDF,587 KB)
Rate book 7 (includes region 14) (PDF, 687 KB)
Rate book 8 (includes regions 15, 16) (PDF, 1.1 MB)
Rate book 9 (includes region 9) (PDF, 688 KB)
Rate book 10 (includes region 17) (PDF, 687 KB)
Rate book 11 (includes regions 18, 19) (PDF, 1.1 MB)
Rate disclosures – April 1, 2025 to June 30, 2025 (PDF, 1.7 MB)
Rating period: January 1, 2025 to March 31, 2025
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 7.4 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 195 KB)
Rate book 1 (includes region 1) (PDF, 639 KB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 2.6 MB)
Rate book 3 (includes region 3) (PDF, 681 KB)
Rate book 4 (includes regions 10, 11) (PDF, 1.0 MB)
Rate book 5 (includes region 12) (PDF, 682 KB)
Rate book 6 (includes region 13) (PDF,581 KB)
Rate book 7 (includes region 14) (PDF, 681 KB)
Rate book 8 (includes regions 15, 16) (PDF, 1.1 MB)
Rate book 9 (includes region 9) (PDF, 683 KB)
Rate book 10 (includes region 17) (PDF, 682 KB)
Rate book 11 (includes regions 18, 19) (PDF, 1.1 MB)
Rate disclosures – January 1, 2025 to March 31, 2025 (PDF, 1.7 MB)
Rating period: October 1, 2024 to December 31, 2024
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 7.4 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 206 KB)
Rate book 1 (includes region 1) (PDF, 639 KB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 2.6 MB)
Rate book 3 (includes region 3) (PDF, 682 KB)
Rate book 4 (includes regions 10, 11) (PDF, 1 MB)
Rate book 5 (includes region 12) (PDF, 693 KB)
Rate book 6 (includes region 13) (PDF, 583 KB)
Rate book 7 (includes region 14) (PDF, 682 KB)
Rate book 8 (includes regions 15, 16) (PDF, 1.1 MB)
Rate book 9 (includes region 9) (PDF, 682 KB)
Rate book 10 (includes region 17) (PDF, 682 KB)
Rate book 11 (includes regions 18, 19) (PDF, 1.1 MB)
Rate disclosures – October 1, 2024 to December 31, 2024 (PDF, 2.3 MB)
Rating period: July 1, 2024 to September 30, 2024
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 14.2 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 334 KB)
Rate book 1 (includes region 1) (PDF, 1.1 MB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 4.9 MB)
Rate book 3 (includes region 3) (PDF, 1.2 MB)
Rate book 4 (includes regions 10, 11) (PDF, 1.8 MB)
Rate book 5 (includes region 12) (PDF, 1.2 MB)
Rate book 6 (includes region 13) (PDF, 979 KB)
Rate book 7 (includes region 14) (PDF, 1.2 MB)
Rate book 8 (includes regions 15, 16) (PDF, 2 MB)
Rate book 9 (includes region 9) (PDF, 1.2 MB)
Rate book 10 (includes region 17) (PDF, 1.2 MB)
Rate book 11 (includes regions 18, 19) (PDF, 2 MB)
Rate disclosures – July 1, 2024 to September 30, 2024 (PDF, 2.5 MB)
Rating period: April 1, 2024 to June 30, 2024
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 14.2 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 334 KB)
Rate book 1 (includes region 1) (PDF, 1.1 MB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 4.9 MB)
Rate book 3 (includes region 3) (PDF, 1.2 MB)
Rate book 4 (includes regions 10, 11) (PDF, 1.8 MB)
Rate book 5 (includes region 12) (PDF, 1.2 MB)
Rate book 6 (includes region 13) (PDF, 979 KB)
Rate book 7 (includes region 14) (PDF, 1.2 MB)
Rate book 8 (includes regions 15, 16) (PDF, 2 MB)
Rate book 9 (includes region 9) (PDF, 1.2 MB)
Rate book 10 (includes region 17) (PDF, 1.2 MB)
Rate book 11 (includes regions 18, 19) (PDF, 2 MB)
Rate disclosures – April 1, 2024 to June 30, 2024 (PDF, 1.7 MB)
Rating period: January 1, 2024 to March 31, 2024
Rate book – includes medical and specialty (all regions: 1-19) (PDF, 7.5 MB)
Closed rate book – includes closed specialty (all regions: 1-19) (PDF, 278 KB)
Rate book 1 (includes region 1) (PDF, 641 KB)
Rate book 2 (includes regions 2, 4, 5, 6, 7, 8) (PDF, 2.7 MB)
Rate book 3 (includes region 3) (PDF, 687 KB)
Rate book 4 (includes regions 10, 11) (PDF, 1.0 MB)
Rate book 5 (includes region 12) (PDF, 689 KB)
Rate book 6 (includes region 13) (PDF, 587 KB)
Rate book 7 (includes region 14) (PDF, 686 KB)
Rate book 8 (includes regions 15, 16) (PDF, 1.1 MB)
Rate book 9 (includes region 9) (PDF, 683 KB)
Rate book 10 (includes region 17) (PDF, 686 KB)
Rate book 11 (includes regions 18, 19) (PDF, 1.1 MB)
Rate disclosures – January 1, 2024 to March 31, 2024 (PDF, 1.8 MB)
