Medicare Advantage & Part D plans in California counties (2026)
56 California counties are covered below. Every plan count and premium is taken directly from the CMS CY2026 Landscape file (March 2026 refresh).
These pages are strictly descriptive. To compare plans against your drugs and pharmacies and to enroll, use Medicare.gov's Plan Finder.
Counties
- Alameda County (49 plans)
- Alpine County (17 plans)
- Amador County (23 plans)
- Butte County (16 plans)
- Calaveras County (17 plans)
- Contra Costa County (23 plans)
- Del Norte County (15 plans)
- El Dorado County (22 plans)
- Fresno County (57 plans)
- Glenn County (15 plans)
- Humboldt County (15 plans)
- Imperial County (33 plans)
- Inyo County (18 plans)
- Kern County (51 plans)
- Kings County (37 plans)
- Lake County (13 plans)
- Lassen County (14 plans)
- Los Angeles County (133 plans)
- Madera County (57 plans)
- Marin County (35 plans)
- Mariposa County (21 plans)
- Mendocino County (16 plans)
- Merced County (29 plans)
- Modoc County (15 plans)
- Mono County (20 plans)
- Monterey County (21 plans)
- Napa County (19 plans)
- Nevada County (16 plans)
- Orange County (116 plans)
- Placer County (41 plans)
- Plumas County (17 plans)
- Riverside County (103 plans)
- Sacramento County (50 plans)
- San Benito County (16 plans)
- San Bernardino County (110 plans)
- San Diego County (105 plans)
- San Francisco County (63 plans)
- San Joaquin County (56 plans)
- San Luis Obispo County (30 plans)
- San Mateo County (45 plans)
- Santa Barbara County (21 plans)
- Santa Clara County (58 plans)
- Santa Cruz County (20 plans)
- Shasta County (16 plans)
- Sierra County (14 plans)
- Siskiyou County (15 plans)
- Solano County (25 plans)
- Sonoma County (21 plans)
- Stanislaus County (50 plans)
- Sutter County (15 plans)
- Tehama County (16 plans)
- Tulare County (36 plans)
- Tuolumne County (18 plans)
- Ventura County (47 plans)
- Yolo County (46 plans)
- Yuba County (19 plans)
Sources
- We do not offer every plan available in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Assistance Program (SHIP) to get information on all of your options.
- Senior Direct Answers is not connected with or endorsed by the United States government or the federal Medicare program.