Counties with the highest COVID-19 vaccination rate in California

Written by:
October 16, 2021
Kglavin // Wikimedia Commons

Counties with the highest COVID-19 vaccination rate in California

As has been true throughout America’s COVID-19 history, every state—and every county therein—has its own COVID-19 story, driven by local policies and behaviors. The United States as of Oct. 15 had reached 722,513 COVID-19-related deaths and 44.8 million COVID-19 cases, according to Johns Hopkins University. As of Feb. 2, more Americans had been vaccinated for COVID-19 than had been infected, and though breakthrough infections are continuing to be studied by the CDC and other health organizations, vaccines have reduced the number of hospitalizations and deaths from COVID-19.

Stacker compiled a list of the counties with highest COVID-19 vaccination rates in California using data from the U.S. Department of Health & Human Services. Counties are ranked by the highest vaccination rate as of Oct. 14, 2021. Keep reading to see whether your county ranks among the highest COVID-19 vaccination rates in your state.

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Finetooth // Wikimedia Commons

#50. Lassen County

- Population that is fully vaccinated: 31.9% (9,749 fully vaccinated)
--- 46.9% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 70.9% (3,359 fully vaccinated)
--- 13.1% lower vaccination rate than California
- Cumulative deaths per 100k: 94 (14 total deaths)
--- 46.9% less deaths per 100k residents than California
- Cumulative cases per 100k: 7,302 (1,092 total cases)
--- 39.6% less cases per 100k residents than California
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Frank Schulenburg // Wikimedia Commons

#49. Tehama County

- Population that is fully vaccinated: 34.9% (22,684 fully vaccinated)
--- 41.9% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 58.9% (7,527 fully vaccinated)
--- 27.8% lower vaccination rate than California
- Cumulative deaths per 100k: 146 (95 total deaths)
--- 17.5% less deaths per 100k residents than California
- Cumulative cases per 100k: 13,636 (8,875 total cases)
--- 12.9% more cases per 100k residents than California
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#48. Del Norte County

- Population that is fully vaccinated: 36.4% (10,137 fully vaccinated)
--- 39.4% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 66.5% (3,406 fully vaccinated)
--- 18.5% lower vaccination rate than California
- Cumulative deaths per 100k: 196 (120 total deaths)
--- 10.7% more deaths per 100k residents than California
- Cumulative cases per 100k: 10,258 (6,290 total cases)
--- 15.1% less cases per 100k residents than California
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Armona // Wikicommons

#47. Kings County

- Population that is fully vaccinated: 37.6% (57,476 fully vaccinated)
--- 37.4% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 68.4% (10,970 fully vaccinated)
--- 16.2% lower vaccination rate than California
- Cumulative deaths per 100k: 97 (2 total deaths)
--- 45.2% less deaths per 100k residents than California
- Cumulative cases per 100k: 14,702 (303 total cases)
--- 21.7% more cases per 100k residents than California
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Mark Miller // Wikimedia Commons

#46. Merced County

- Population that is fully vaccinated: 42.0% (116,642 fully vaccinated)
--- 30.1% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 74.0% (23,403 fully vaccinated)
--- 9.3% lower vaccination rate than California
- Cumulative deaths per 100k: 192 (12 total deaths)
--- 8.5% more deaths per 100k residents than California
- Cumulative cases per 100k: 12,025 (750 total cases)
--- 0.5% less cases per 100k residents than California
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Doug Kerr // Wikicommons

#45. Shasta County

- Population that is fully vaccinated: 42.3% (76,239 fully vaccinated)
--- 29.6% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 70.8% (26,969 fully vaccinated)
--- 13.2% lower vaccination rate than California
- Cumulative deaths per 100k: 318 (13 total deaths)
--- 79.7% more deaths per 100k residents than California
- Cumulative cases per 100k: 15,663 (640 total cases)
--- 29.6% more cases per 100k residents than California
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U.S. Army Corps of Engineers Sacramento District // Wikimedia Commons

#44. Yuba County

- Population that is fully vaccinated: 43.0% (33,860 fully vaccinated)
--- 28.5% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 71.9% (7,389 fully vaccinated)
--- 11.9% lower vaccination rate than California
- Cumulative deaths per 100k: 156 (49 total deaths)
--- 11.9% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,030 (3,773 total cases)
--- 0.4% less cases per 100k residents than California
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nickchapman // Wikicommons

#43. Kern County

- Population that is fully vaccinated: 43.2% (388,516 fully vaccinated)
--- 28.1% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 73.9% (74,741 fully vaccinated)
--- 9.4% lower vaccination rate than California
- Cumulative deaths per 100k: 403 (102 total deaths)
--- 127.7% more deaths per 100k residents than California
- Cumulative cases per 100k: 14,712 (3,720 total cases)
--- 21.8% more cases per 100k residents than California
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#42. Tulare County

- Population that is fully vaccinated: 43.2% (201,508 fully vaccinated)
--- 28.1% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 74.6% (40,528 fully vaccinated)
--- 8.6% lower vaccination rate than California
- Cumulative deaths per 100k: 291 (313 total deaths)
--- 64.4% more deaths per 100k residents than California
- Cumulative cases per 100k: 18,477 (19,907 total cases)
--- 52.9% more cases per 100k residents than California
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Public Domain

#41. Madera County

- Population that is fully vaccinated: 44.4% (69,900 fully vaccinated)
--- 26.1% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 76.2% (17,208 fully vaccinated)
--- 6.6% lower vaccination rate than California
- Cumulative deaths per 100k: 521 (80 total deaths)
--- 194.4% more deaths per 100k residents than California
- Cumulative cases per 100k: 17,010 (2,613 total cases)
--- 40.8% more cases per 100k residents than California
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#40. Butte County

- Population that is fully vaccinated: 46.4% (101,714 fully vaccinated)
--- 22.8% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 72.6% (29,193 fully vaccinated)
--- 11.0% lower vaccination rate than California
- Cumulative deaths per 100k: 331 (18 total deaths)
--- 87.0% more deaths per 100k residents than California
- Cumulative cases per 100k: 15,218 (828 total cases)
--- 25.9% more cases per 100k residents than California
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Trance addict // Wikimedia Commons

#39. Glenn County

- Population that is fully vaccinated: 46.6% (13,228 fully vaccinated)
--- 22.5% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 82.1% (3,674 fully vaccinated)
--- 0.6% higher vaccination rate than California
- Cumulative deaths per 100k: 348 (37 total deaths)
--- 96.6% more deaths per 100k residents than California
- Cumulative cases per 100k: 16,557 (1,760 total cases)
--- 37.0% more cases per 100k residents than California
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Chmee2 // Wikimedia Commons

#38. Siskiyou County

- Population that is fully vaccinated: 47.3% (20,577 fully vaccinated)
--- 21.3% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 73.8% (8,396 fully vaccinated)
--- 9.6% lower vaccination rate than California
- Cumulative deaths per 100k: 301 (122 total deaths)
--- 70.1% more deaths per 100k residents than California
- Cumulative cases per 100k: 9,995 (4,057 total cases)
--- 17.3% less cases per 100k residents than California
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Bobak Ha'Eri // Wikimedia Commons

#37. Amador County

- Population that is fully vaccinated: 48.1% (19,129 fully vaccinated)
--- 20.0% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 77.1% (8,444 fully vaccinated)
--- 5.5% lower vaccination rate than California
- Cumulative deaths per 100k: 415 (59 total deaths)
--- 134.5% more deaths per 100k residents than California
- Cumulative cases per 100k: 23,078 (3,284 total cases)
--- 91.0% more cases per 100k residents than California
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Canva

#36. San Bernardino County

- Population that is fully vaccinated: 48.2% (1,050,023 fully vaccinated)
--- 19.8% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 76.3% (198,806 fully vaccinated)
--- 6.5% lower vaccination rate than California
- Cumulative deaths per 100k: 581 (97 total deaths)
--- 228.2% more deaths per 100k residents than California
- Cumulative cases per 100k: 18,904 (3,157 total cases)
--- 56.5% more cases per 100k residents than California
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Public Domain

#35. Stanislaus County

- Population that is fully vaccinated: 48.2% (265,653 fully vaccinated)
--- 19.8% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 77.0% (56,943 fully vaccinated)
--- 5.6% lower vaccination rate than California
- Cumulative deaths per 100k: 308 (7 total deaths)
--- 74.0% more deaths per 100k residents than California
- Cumulative cases per 100k: 12,489 (284 total cases)
--- 3.4% more cases per 100k residents than California
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Daniel Orth // Flickr

#34. Riverside County

- Population that is fully vaccinated: 49.8% (1,229,755 fully vaccinated)
--- 17.1% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 77.0% (281,823 fully vaccinated)
--- 5.6% lower vaccination rate than California
- Cumulative deaths per 100k: 109 (47 total deaths)
--- 38.4% less deaths per 100k residents than California
- Cumulative cases per 100k: 14,458 (6,254 total cases)
--- 19.7% more cases per 100k residents than California
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Ray Bouknight // Wikicommons

#33. Sutter County

- Population that is fully vaccinated: 50.4% (48,876 fully vaccinated)
--- 16.1% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 77.9% (11,766 fully vaccinated)
--- 4.5% lower vaccination rate than California
- Cumulative deaths per 100k: 236 (100 total deaths)
--- 33.3% more deaths per 100k residents than California
- Cumulative cases per 100k: 16,923 (7,165 total cases)
--- 40.1% more cases per 100k residents than California
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CleanWater17 // Wikimedia Commons

#32. Colusa County

- Population that is fully vaccinated: 50.5% (10,879 fully vaccinated)
--- 16.0% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 75.6% (2,431 fully vaccinated)
--- 7.4% lower vaccination rate than California
- Cumulative deaths per 100k: 362 (104 total deaths)
--- 104.5% more deaths per 100k residents than California
- Cumulative cases per 100k: 17,241 (4,959 total cases)
--- 42.7% more cases per 100k residents than California
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SD Dirk // Flickr

#31. San Diego County

- Population that is fully vaccinated: 50.7% (1,693,025 fully vaccinated)
--- 15.6% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 63.6% (308,318 fully vaccinated)
--- 22.1% lower vaccination rate than California
- Cumulative deaths per 100k: 174 (4 total deaths)
--- 1.7% less deaths per 100k residents than California
- Cumulative cases per 100k: 10,831 (249 total cases)
--- 10.4% less cases per 100k residents than California
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David Jordan // Wikicommons

#30. Fresno County

- Population that is fully vaccinated: 50.7% (507,029 fully vaccinated)
--- 15.6% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 82.6% (103,629 fully vaccinated)
--- 1.2% higher vaccination rate than California
- Cumulative deaths per 100k: 614 (53 total deaths)
--- 246.9% more deaths per 100k residents than California
- Cumulative cases per 100k: 14,406 (1,244 total cases)
--- 19.2% more cases per 100k residents than California
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LPS.1 // Wikicommons

#29. San Joaquin County

- Population that is fully vaccinated: 51.3% (391,277 fully vaccinated)
--- 14.6% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 87.1% (86,930 fully vaccinated)
--- 6.7% higher vaccination rate than California
- Cumulative deaths per 100k: 302 (316 total deaths)
--- 70.6% more deaths per 100k residents than California
- Cumulative cases per 100k: 20,975 (21,946 total cases)
--- 73.6% more cases per 100k residents than California
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CFang // Wikimedia Commons

#28. Lake County

- Population that is fully vaccinated: 51.6% (33,233 fully vaccinated)
--- 14.1% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 75.1% (11,149 fully vaccinated)
--- 8.0% lower vaccination rate than California
- Cumulative deaths per 100k: 349 (33 total deaths)
--- 97.2% more deaths per 100k residents than California
- Cumulative cases per 100k: 16,963 (1,603 total cases)
--- 40.4% more cases per 100k residents than California
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Bobak Ha'Eri // Wikimedia Commons

#27. Tuolumne County

- Population that is fully vaccinated: 52.3% (28,506 fully vaccinated)
--- 13.0% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 86.3% (12,691 fully vaccinated)
--- 5.8% higher vaccination rate than California
- Cumulative deaths per 100k: 289 (45 total deaths)
--- 63.3% more deaths per 100k residents than California
- Cumulative cases per 100k: 12,540 (1,950 total cases)
--- 3.8% more cases per 100k residents than California
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Basar // Wikicommons

#26. San Luis Obispo County

- Population that is fully vaccinated: 52.6% (148,859 fully vaccinated)
--- 12.5% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 74.1% (43,759 fully vaccinated)
--- 9.2% lower vaccination rate than California
- Cumulative deaths per 100k: 418 (36 total deaths)
--- 136.2% more deaths per 100k residents than California
- Cumulative cases per 100k: 16,150 (1,391 total cases)
--- 33.7% more cases per 100k residents than California
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Canva

#25. Calaveras County

- Population that is fully vaccinated: 54.4% (24,983 fully vaccinated)
--- 9.5% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 83.4% (10,727 fully vaccinated)
--- 2.2% higher vaccination rate than California
- Cumulative deaths per 100k: 378 (31 total deaths)
--- 113.6% more deaths per 100k residents than California
- Cumulative cases per 100k: 11,030 (905 total cases)
--- 8.7% less cases per 100k residents than California
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Michael Patrick // Wikimedia Commons

#24. San Benito County

- Population that is fully vaccinated: 54.5% (34,241 fully vaccinated)
--- 9.3% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 74.8% (6,174 fully vaccinated)
--- 8.3% lower vaccination rate than California
- Cumulative deaths per 100k: 258 (275 total deaths)
--- 45.8% more deaths per 100k residents than California
- Cumulative cases per 100k: 14,506 (15,481 total cases)
--- 20.1% more cases per 100k residents than California
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DimiTalen // Wikimedia Commons

#23. El Dorado County

- Population that is fully vaccinated: 55.4% (106,902 fully vaccinated)
--- 7.8% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 78.9% (33,385 fully vaccinated)
--- 3.3% lower vaccination rate than California
- Cumulative deaths per 100k: 308 (9 total deaths)
--- 74.0% more deaths per 100k residents than California
- Cumulative cases per 100k: 17,186 (502 total cases)
--- 42.2% more cases per 100k residents than California
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Frank Schulenburg // Wikimedia Commons

#22. Nevada County

- Population that is fully vaccinated: 55.7% (55,560 fully vaccinated)
--- 7.3% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 71.0% (20,103 fully vaccinated)
--- 13.0% lower vaccination rate than California
- Cumulative deaths per 100k: 217 (86 total deaths)
--- 22.6% more deaths per 100k residents than California
- Cumulative cases per 100k: 14,144 (5,600 total cases)
--- 17.1% more cases per 100k residents than California
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Canva

#21. Solano County

- Population that is fully vaccinated: 56.4% (252,638 fully vaccinated)
--- 6.2% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 77.8% (56,944 fully vaccinated)
--- 4.7% lower vaccination rate than California
- Cumulative deaths per 100k: 83 (3 total deaths)
--- 53.1% less deaths per 100k residents than California
- Cumulative cases per 100k: 14,069 (511 total cases)
--- 16.4% more cases per 100k residents than California
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Canva

#20. Sacramento County

- Population that is fully vaccinated: 57.2% (887,615 fully vaccinated)
--- 4.8% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 84.4% (189,788 fully vaccinated)
--- 3.4% higher vaccination rate than California
- Cumulative deaths per 100k: 379 (94 total deaths)
--- 114.1% more deaths per 100k residents than California
- Cumulative cases per 100k: 17,835 (4,421 total cases)
--- 47.6% more cases per 100k residents than California
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Cory Maylett // Wikimedia Commons

#19. Humboldt County

- Population that is fully vaccinated: 57.4% (77,874 fully vaccinated)
--- 4.5% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 81.7% (20,585 fully vaccinated)
--- 0.1% higher vaccination rate than California
- Cumulative deaths per 100k: 160 (73 total deaths)
--- 9.6% less deaths per 100k residents than California
- Cumulative cases per 100k: 10,453 (4,781 total cases)
--- 13.5% less cases per 100k residents than California
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Doug Olson // Wikimedia Commons

#18. Placer County

- Population that is fully vaccinated: 58.3% (232,389 fully vaccinated)
--- 3.0% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 84.1% (66,765 fully vaccinated)
--- 3.1% higher vaccination rate than California
- Cumulative deaths per 100k: 89 (7 total deaths)
--- 49.7% less deaths per 100k residents than California
- Cumulative cases per 100k: 8,351 (654 total cases)
--- 30.9% less cases per 100k residents than California
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Binksternet // Wikimedia Commons

#17. Mendocino County

- Population that is fully vaccinated: 58.9% (51,130 fully vaccinated)
--- 2.0% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 80.2% (16,066 fully vaccinated)
--- 1.7% lower vaccination rate than California
- Cumulative deaths per 100k: 120 (12 total deaths)
--- 32.2% less deaths per 100k residents than California
- Cumulative cases per 100k: 13,759 (1,376 total cases)
--- 13.9% more cases per 100k residents than California
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Naotake Murayama // Wikicommons

#16. Monterey County

- Population that is fully vaccinated: 59.1% (256,659 fully vaccinated)
--- 1.7% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 78.6% (47,734 fully vaccinated)
--- 3.7% lower vaccination rate than California
- Cumulative deaths per 100k: 249 (102 total deaths)
--- 40.7% more deaths per 100k residents than California
- Cumulative cases per 100k: 17,171 (7,021 total cases)
--- 42.1% more cases per 100k residents than California
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Epolk // Wikimedia Commons

#15. Yolo County

- Population that is fully vaccinated: 59.8% (131,890 fully vaccinated)
--- 0.5% lower vaccination rate than California
- Population over 65 that is fully vaccinated: 90.0% (25,661 fully vaccinated)
--- 10.3% higher vaccination rate than California
- Cumulative deaths per 100k: 138 (19 total deaths)
--- 22.0% less deaths per 100k residents than California
- Cumulative cases per 100k: 10,019 (1,375 total cases)
--- 17.1% less cases per 100k residents than California
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Pixabay

#14. Santa Barbara County

- Population that is fully vaccinated: 60.5% (270,107 fully vaccinated)
--- 0.7% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 83.6% (58,649 fully vaccinated)
--- 2.5% higher vaccination rate than California
- Cumulative deaths per 100k: 293 (75 total deaths)
--- 65.5% more deaths per 100k residents than California
- Cumulative cases per 100k: 15,325 (3,926 total cases)
--- 26.8% more cases per 100k residents than California
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BDS2006 // Wikimedia

#13. Los Angeles County

- Population that is fully vaccinated: 60.7% (6,090,915 fully vaccinated)
--- 1.0% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 77.7% (1,099,105 fully vaccinated)
--- 4.8% lower vaccination rate than California
- Cumulative deaths per 100k: 0 (0 total deaths)
--- 100.0% less deaths per 100k residents than California
- Cumulative cases per 100k: 5,200 (39 total cases)
--- 57.0% less cases per 100k residents than California
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Hollywood // Wikimedia Commons

#12. Orange County

- Population that is fully vaccinated: 62.2% (1,974,632 fully vaccinated)
--- 3.5% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 83.4% (404,927 fully vaccinated)
--- 2.2% higher vaccination rate than California
- Cumulative deaths per 100k: 638 (44 total deaths)
--- 260.5% more deaths per 100k residents than California
- Cumulative cases per 100k: 17,519 (1,209 total cases)
--- 45.0% more cases per 100k residents than California
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Canva

#11. Ventura County

- Population that is fully vaccinated: 62.2% (526,261 fully vaccinated)
--- 3.5% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 85.6% (117,066 fully vaccinated)
--- 4.9% higher vaccination rate than California
- Cumulative deaths per 100k: 313 (37 total deaths)
--- 76.8% more deaths per 100k residents than California
- Cumulative cases per 100k: 12,459 (1,473 total cases)
--- 3.1% more cases per 100k residents than California
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Stan Shebs // Wikicommons

#10. Napa County

- Population that is fully vaccinated: 67.1% (92,437 fully vaccinated)
--- 11.6% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 85.4% (23,179 fully vaccinated)
--- 4.7% higher vaccination rate than California
- Cumulative deaths per 100k: 177 (10 total deaths)
--- 0.0% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,527 (706 total cases)
--- 3.7% more cases per 100k residents than California
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Fred Hsu // Wikicommons

#9. Sonoma County

- Population that is fully vaccinated: 67.7% (334,702 fully vaccinated)
--- 12.6% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 84.5% (86,416 fully vaccinated)
--- 3.6% higher vaccination rate than California
- Cumulative deaths per 100k: 318 (59 total deaths)
--- 79.7% more deaths per 100k residents than California
- Cumulative cases per 100k: 16,667 (3,097 total cases)
--- 37.9% more cases per 100k residents than California
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Cbl62 // Wikicommons

#8. Imperial County

- Population that is fully vaccinated: 68.4% (123,966 fully vaccinated)
--- 13.8% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 83.3% (20,099 fully vaccinated)
--- 2.1% higher vaccination rate than California
- Cumulative deaths per 100k: 157 (49 total deaths)
--- 11.3% less deaths per 100k residents than California
- Cumulative cases per 100k: 22,264 (6,934 total cases)
--- 84.3% more cases per 100k residents than California
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Aaronbrick // Wikicommons

#7. Santa Cruz County

- Population that is fully vaccinated: 68.9% (188,260 fully vaccinated)
--- 14.6% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 90.6% (42,776 fully vaccinated)
--- 11.0% higher vaccination rate than California
- Cumulative deaths per 100k: 181 (144 total deaths)
--- 2.3% more deaths per 100k residents than California
- Cumulative cases per 100k: 14,861 (11,808 total cases)
--- 23.0% more cases per 100k residents than California
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Jennifer Williams // Wikimedia Commons

#6. Alameda County

- Population that is fully vaccinated: 70.2% (1,173,988 fully vaccinated)
--- 16.8% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 88.0% (210,077 fully vaccinated)
--- 7.8% higher vaccination rate than California
- Cumulative deaths per 100k: 203 (118 total deaths)
--- 14.7% more deaths per 100k residents than California
- Cumulative cases per 100k: 13,090 (7,623 total cases)
--- 8.3% more cases per 100k residents than California
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MARELBU // Wikimedia Commons

#5. Contra Costa County

- Population that is fully vaccinated: 70.2% (810,008 fully vaccinated)
--- 16.8% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 90.7% (170,273 fully vaccinated)
--- 11.2% higher vaccination rate than California
- Cumulative deaths per 100k: 262 (191 total deaths)
--- 48.0% more deaths per 100k residents than California
- Cumulative cases per 100k: 19,650 (14,340 total cases)
--- 62.6% more cases per 100k residents than California
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Craig Howell // Wikimedia Commons

#4. San Mateo County

- Population that is fully vaccinated: 72.3% (553,863 fully vaccinated)
--- 20.3% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 86.9% (110,278 fully vaccinated)
--- 6.5% higher vaccination rate than California
- Cumulative deaths per 100k: 335 (12 total deaths)
--- 89.3% more deaths per 100k residents than California
- Cumulative cases per 100k: 13,117 (470 total cases)
--- 8.6% more cases per 100k residents than California
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Canva

#3. San Francisco County

- Population that is fully vaccinated: 74.1% (652,993 fully vaccinated)
--- 23.3% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 83.9% (118,912 fully vaccinated)
--- 2.8% higher vaccination rate than California
- Cumulative deaths per 100k: 377 (85 total deaths)
--- 113.0% more deaths per 100k residents than California
- Cumulative cases per 100k: 15,775 (3,554 total cases)
--- 30.6% more cases per 100k residents than California
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Uladzik Kryhin // Shutterstock

#2. Santa Clara County

- Population that is fully vaccinated: 74.8% (1,441,721 fully vaccinated)
--- 24.5% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 90.1% (241,525 fully vaccinated)
--- 10.4% higher vaccination rate than California
- Cumulative deaths per 100k: 601 (48 total deaths)
--- 239.5% more deaths per 100k residents than California
- Cumulative cases per 100k: 20,776 (1,659 total cases)
--- 71.9% more cases per 100k residents than California
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Kglavin // Wikimedia Commons

#1. Marin County

- Population that is fully vaccinated: 77.5% (200,468 fully vaccinated)
--- 29.0% higher vaccination rate than California
- Population over 65 that is fully vaccinated: 88.7% (52,693 fully vaccinated)
--- 8.7% higher vaccination rate than California
- Cumulative deaths per 100k: 168 (472 total deaths)
--- 5.1% less deaths per 100k residents than California
- Cumulative cases per 100k: 16,120 (45,293 total cases)
--- 33.4% more cases per 100k residents than California

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