Counties with the highest COVID-19 vaccination rate in California

Written by:
January 22, 2022
Kglavin // Wikimedia Commons

Counties with the highest COVID-19 vaccination rate in California

The vaccine deployment in December 2020 signaled a turning point in the COVID-19 pandemic. By the end of May 2021, 40% of the U.S. population was fully vaccinated. But as vaccination rates lagged over the summer, new surges of COVID-19 came, including Delta in the summer of 2021, and now the Omicron variant, which comprises the majority of cases in the U.S.

Researchers around the world have reported that Omicron is more transmissible than Delta, making breakthrough and repeat infections more likely. Early research suggests this strain may cause less severe illness than Delta and the original virus, however, health officials have warned an Omicron-driven surge could still increase hospitalization and death rates—especially in areas with less vaccinated populations.

The United States as of Jan. 21 reached 861,392 COVID-19-related deaths and 69.5 million COVID-19 cases, according to Johns Hopkins University. Currently, 63.2% of the population is fully vaccinated, and 39.3% have received booster doses.

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 and Covid Act Now. Counties are ranked by the highest vaccination rate as of Jan. 20, 2022. Due to inconsistencies in reporting, some counties do not have vaccination data available. Keep reading to see whether your county ranks among the highest COVID-19 vaccination rates in your state.

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Chmee2 // Wikimedia Commons

#50. Siskiyou County

- Population that is fully vaccinated: 46.8% (20,392 fully vaccinated)
--- 31.4% lower vaccination rate than California
- Cumulative deaths per 100k: 142 (62 total deaths)
--- 27.6% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,625 (5,497 total cases)
--- 31.5% less cases per 100k residents than California
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Almonroth // Wikimedia Commons

#49. Trinity County

- Population that is fully vaccinated: 47.4% (5,821 fully vaccinated)
--- 30.5% lower vaccination rate than California
- Cumulative deaths per 100k: 155 (19 total deaths)
--- 20.9% less deaths per 100k residents than California
- Cumulative cases per 100k: 9,198 (1,130 total cases)
--- 50.1% less cases per 100k residents than California
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Mark Miller // Wikimedia Commons

#48. Merced County

- Population that is fully vaccinated: 48.3% (134,253 fully vaccinated)
--- 29.2% lower vaccination rate than California
- Cumulative deaths per 100k: 259 (718 total deaths)
--- 32.1% more deaths per 100k residents than California
- Cumulative cases per 100k: 19,715 (54,745 total cases)
--- 6.9% more cases per 100k residents than California
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Bobak Ha'Eri // Wikimedia Commons

#47. Tuolumne County

- Population that is fully vaccinated: 50.6% (27,557 fully vaccinated)
--- 25.8% lower vaccination rate than California
- Cumulative deaths per 100k: 167 (91 total deaths)
--- 14.8% less deaths per 100k residents than California
- Cumulative cases per 100k: 17,805 (9,700 total cases)
--- 3.4% less cases per 100k residents than California
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nickchapman // Wikicommons

#46. Kern County

- Population that is fully vaccinated: 50.6% (455,549 fully vaccinated)
--- 25.8% lower vaccination rate than California
- Cumulative deaths per 100k: 216 (1,944 total deaths)
--- 10.2% more deaths per 100k residents than California
- Cumulative cases per 100k: 20,725 (186,571 total cases)
--- 12.4% more cases per 100k residents than California
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Bobak Ha'Eri // Wikimedia Commons

#45. Amador County

- Population that is fully vaccinated: 50.8% (20,212 fully vaccinated)
--- 25.5% lower vaccination rate than California
- Cumulative deaths per 100k: 184 (73 total deaths)
--- 6.1% less deaths per 100k residents than California
- Cumulative cases per 100k: 17,156 (6,820 total cases)
--- 6.9% less cases per 100k residents than California
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Canva

#44. Tulare County

- Population that is fully vaccinated: 51.1% (238,016 fully vaccinated)
--- 25.1% lower vaccination rate than California
- Cumulative deaths per 100k: 257 (1,199 total deaths)
--- 31.1% more deaths per 100k residents than California
- Cumulative cases per 100k: 21,989 (102,511 total cases)
--- 19.3% more cases per 100k residents than California
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Canva

#43. Butte County

- Population that is fully vaccinated: 51.2% (112,133 fully vaccinated)
--- 24.9% lower vaccination rate than California
- Cumulative deaths per 100k: 159 (348 total deaths)
--- 18.9% less deaths per 100k residents than California
- Cumulative cases per 100k: 14,268 (31,274 total cases)
--- 22.6% less cases per 100k residents than California
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Public Domain

#42. Madera County

- Population that is fully vaccinated: 51.3% (80,730 fully vaccinated)
--- 24.8% lower vaccination rate than California
- Cumulative deaths per 100k: 209 (329 total deaths)
--- 6.6% more deaths per 100k residents than California
- Cumulative cases per 100k: 20,059 (31,559 total cases)
--- 8.8% more cases per 100k residents than California
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Canva

#41. Sierra County

- Population that is fully vaccinated: 51.6% (1,551 fully vaccinated)
--- 24.3% 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: 8,952 (269 total cases)
--- 51.4% less cases per 100k residents than California
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Canva

#40. Calaveras County

- Population that is fully vaccinated: 51.6% (23,708 fully vaccinated)
--- 24.3% lower vaccination rate than California
- Cumulative deaths per 100k: 205 (94 total deaths)
--- 4.6% more deaths per 100k residents than California
- Cumulative cases per 100k: 12,665 (5,814 total cases)
--- 31.3% less cases per 100k residents than California
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CFang // Wikimedia Commons

#39. Lake County

- Population that is fully vaccinated: 52.7% (33,929 fully vaccinated)
--- 22.7% lower vaccination rate than California
- Cumulative deaths per 100k: 182 (117 total deaths)
--- 7.1% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,806 (8,245 total cases)
--- 30.5% less cases per 100k residents than California
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Trance addict // Wikimedia Commons

#38. Glenn County

- Population that is fully vaccinated: 52.8% (14,995 fully vaccinated)
--- 22.6% lower vaccination rate than California
- Cumulative deaths per 100k: 137 (39 total deaths)
--- 30.1% less deaths per 100k residents than California
- Cumulative cases per 100k: 18,469 (5,244 total cases)
--- 0.2% more cases per 100k residents than California
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Kenneth Green // Wikimedia Commons

#37. Plumas County

- Population that is fully vaccinated: 53.7% (10,097 fully vaccinated)
--- 21.3% lower vaccination rate than California
- Cumulative deaths per 100k: 64 (12 total deaths)
--- 67.3% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,309 (2,315 total cases)
--- 33.2% less cases per 100k residents than California
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Public Domain

#36. Stanislaus County

- Population that is fully vaccinated: 54.1% (297,712 fully vaccinated)
--- 20.7% lower vaccination rate than California
- Cumulative deaths per 100k: 250 (1,379 total deaths)
--- 27.6% more deaths per 100k residents than California
- Cumulative cases per 100k: 19,733 (108,664 total cases)
--- 7.0% more cases per 100k residents than California
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Canva

#35. San Bernardino County

- Population that is fully vaccinated: 54.1% (1,178,534 fully vaccinated)
--- 20.7% lower vaccination rate than California
- Cumulative deaths per 100k: 287 (6,259 total deaths)
--- 46.4% more deaths per 100k residents than California
- Cumulative cases per 100k: 22,895 (499,140 total cases)
--- 24.2% more cases per 100k residents than California
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Daniel Orth // Flickr

#34. Riverside County

- Population that is fully vaccinated: 56.1% (1,385,749 fully vaccinated)
--- 17.7% lower vaccination rate than California
- Cumulative deaths per 100k: 227 (5,600 total deaths)
--- 15.8% more deaths per 100k residents than California
- Cumulative cases per 100k: 20,915 (516,723 total cases)
--- 13.5% more cases per 100k residents than California
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Ray Bouknight // Wikicommons

#33. Sutter County

- Population that is fully vaccinated: 57.2% (55,478 fully vaccinated)
--- 16.1% lower vaccination rate than California
- Cumulative deaths per 100k: 204 (198 total deaths)
--- 4.1% more deaths per 100k residents than California
- Cumulative cases per 100k: 18,451 (17,892 total cases)
--- 0.1% more cases per 100k residents than California
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CleanWater17 // Wikimedia Commons

#32. Colusa County

- Population that is fully vaccinated: 57.5% (12,396 fully vaccinated)
--- 15.7% lower vaccination rate than California
- Cumulative deaths per 100k: 97 (21 total deaths)
--- 50.5% less deaths per 100k residents than California
- Cumulative cases per 100k: 17,320 (3,732 total cases)
--- 6.0% less cases per 100k residents than California
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LPS.1 // Wikicommons

#31. San Joaquin County

- Population that is fully vaccinated: 57.8% (440,376 fully vaccinated)
--- 15.2% lower vaccination rate than California
- Cumulative deaths per 100k: 257 (1,958 total deaths)
--- 31.1% more deaths per 100k residents than California
- Cumulative cases per 100k: 18,551 (141,383 total cases)
--- 0.6% more cases per 100k residents than California
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David Jordan // Wikicommons

#30. Fresno County

- Population that is fully vaccinated: 58.0% (579,097 fully vaccinated)
--- 15.0% lower vaccination rate than California
- Cumulative deaths per 100k: 243 (2,426 total deaths)
--- 24.0% more deaths per 100k residents than California
- Cumulative cases per 100k: 19,341 (193,234 total cases)
--- 4.9% more cases per 100k residents than California
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DimiTalen // Wikimedia Commons

#29. El Dorado County

- Population that is fully vaccinated: 59.2% (114,069 fully vaccinated)
--- 13.2% lower vaccination rate than California
- Cumulative deaths per 100k: 91 (175 total deaths)
--- 53.6% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,431 (23,973 total cases)
--- 32.6% less cases per 100k residents than California
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Chuck Abbe // Wikimedia Commons

#28. Inyo County

- Population that is fully vaccinated: 59.7% (10,767 fully vaccinated)
--- 12.5% lower vaccination rate than California
- Cumulative deaths per 100k: 272 (49 total deaths)
--- 38.8% more deaths per 100k residents than California
- Cumulative cases per 100k: 20,661 (3,727 total cases)
--- 12.1% more cases per 100k residents than California
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Frank Schulenburg // Wikimedia Commons

#27. Nevada County

- Population that is fully vaccinated: 61.4% (61,231 fully vaccinated)
--- 10.0% lower vaccination rate than California
- Cumulative deaths per 100k: 111 (111 total deaths)
--- 43.4% less deaths per 100k residents than California
- Cumulative cases per 100k: 13,153 (13,121 total cases)
--- 28.7% less cases per 100k residents than California
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clr_flickr from Rocklin, USA // Wikimedia Commons

#26. Mono County

- Population that is fully vaccinated: 61.9% (8,934 fully vaccinated)
--- 9.2% lower vaccination rate than California
- Cumulative deaths per 100k: 28 (4 total deaths)
--- 85.7% less deaths per 100k residents than California
- Cumulative cases per 100k: 18,894 (2,729 total cases)
--- 2.5% more cases per 100k residents than California
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Basar // Wikicommons

#25. San Luis Obispo County

- Population that is fully vaccinated: 62.3% (176,299 fully vaccinated)
--- 8.7% lower vaccination rate than California
- Cumulative deaths per 100k: 135 (381 total deaths)
--- 31.1% less deaths per 100k residents than California
- Cumulative cases per 100k: 15,206 (43,050 total cases)
--- 17.5% less cases per 100k residents than California
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Canva

#24. Solano County

- Population that is fully vaccinated: 63.7% (285,263 fully vaccinated)
--- 6.6% lower vaccination rate than California
- Cumulative deaths per 100k: 87 (391 total deaths)
--- 55.6% less deaths per 100k residents than California
- Cumulative cases per 100k: 14,432 (64,606 total cases)
--- 21.7% less cases per 100k residents than California
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Susan Popielaski // Wikimedia Commons

#23. Alpine County

- Population that is fully vaccinated: 63.8% (720 fully vaccinated)
--- 6.5% 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: 10,452 (118 total cases)
--- 43.3% less cases per 100k residents than California
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Cory Maylett // Wikimedia Commons

#22. Humboldt County

- Population that is fully vaccinated: 63.8% (86,488 fully vaccinated)
--- 6.5% lower vaccination rate than California
- Cumulative deaths per 100k: 92 (125 total deaths)
--- 53.1% less deaths per 100k residents than California
- Cumulative cases per 100k: 10,770 (14,600 total cases)
--- 41.6% less cases per 100k residents than California
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Canva

#21. Sacramento County

- Population that is fully vaccinated: 64.2% (996,982 fully vaccinated)
--- 5.9% lower vaccination rate than California
- Cumulative deaths per 100k: 161 (2,497 total deaths)
--- 17.9% less deaths per 100k residents than California
- Cumulative cases per 100k: 15,144 (235,050 total cases)
--- 17.9% less cases per 100k residents than California
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Doug Olson // Wikimedia Commons

#20. Placer County

- Population that is fully vaccinated: 64.4% (256,387 fully vaccinated)
--- 5.6% lower vaccination rate than California
- Cumulative deaths per 100k: 128 (508 total deaths)
--- 34.7% less deaths per 100k residents than California
- Cumulative cases per 100k: 14,053 (55,976 total cases)
--- 23.8% less cases per 100k residents than California
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Binksternet // Wikimedia Commons

#19. Mendocino County

- Population that is fully vaccinated: 66.1% (57,359 fully vaccinated)
--- 3.1% lower vaccination rate than California
- Cumulative deaths per 100k: 119 (103 total deaths)
--- 39.3% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,855 (11,152 total cases)
--- 30.3% less cases per 100k residents than California
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Pixabay

#18. Santa Barbara County

- Population that is fully vaccinated: 66.4% (296,518 fully vaccinated)
--- 2.6% lower vaccination rate than California
- Cumulative deaths per 100k: 130 (582 total deaths)
--- 33.7% less deaths per 100k residents than California
- Cumulative cases per 100k: 15,604 (69,671 total cases)
--- 15.4% less cases per 100k residents than California
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Epolk // Wikimedia Commons

#17. Yolo County

- Population that is fully vaccinated: 67.3% (148,333 fully vaccinated)
--- 1.3% lower vaccination rate than California
- Cumulative deaths per 100k: 122 (270 total deaths)
--- 37.8% less deaths per 100k residents than California
- Cumulative cases per 100k: 13,939 (30,735 total cases)
--- 24.4% less cases per 100k residents than California
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Michael Patrick // Wikimedia Commons

#16. San Benito County

- Population that is fully vaccinated: 68.1% (42,741 fully vaccinated)
--- 0.1% lower vaccination rate than California
- Cumulative deaths per 100k: 140 (88 total deaths)
--- 28.6% less deaths per 100k residents than California
- Cumulative cases per 100k: 17,241 (10,829 total cases)
--- 6.5% less cases per 100k residents than California
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Naotake Murayama // Wikicommons

#15. Monterey County

- Population that is fully vaccinated: 68.9% (298,851 fully vaccinated)
--- 1.0% higher vaccination rate than California
- Cumulative deaths per 100k: 150 (650 total deaths)
--- 23.5% less deaths per 100k residents than California
- Cumulative cases per 100k: 15,178 (65,883 total cases)
--- 17.7% less cases per 100k residents than California
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Canva

#14. Ventura County

- Population that is fully vaccinated: 69.3% (585,950 fully vaccinated)
--- 1.6% higher vaccination rate than California
- Cumulative deaths per 100k: 146 (1,234 total deaths)
--- 25.5% less deaths per 100k residents than California
- Cumulative cases per 100k: 17,660 (149,407 total cases)
--- 4.2% less cases per 100k residents than California
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Hollywood // Wikimedia Commons

#13. Orange County

- Population that is fully vaccinated: 70.1% (2,224,721 fully vaccinated)
--- 2.8% higher vaccination rate than California
- Cumulative deaths per 100k: 187 (5,938 total deaths)
--- 4.6% less deaths per 100k residents than California
- Cumulative cases per 100k: 15,342 (487,199 total cases)
--- 16.8% less cases per 100k residents than California
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BDS2006 // Wikimedia

#12. Los Angeles County

- Population that is fully vaccinated: 70.2% (7,046,387 fully vaccinated)
--- 2.9% higher vaccination rate than California
- Cumulative deaths per 100k: 278 (27,871 total deaths)
--- 41.8% more deaths per 100k residents than California
- Cumulative cases per 100k: 23,028 (2,311,827 total cases)
--- 24.9% more cases per 100k residents than California
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Aaronbrick // Wikicommons

#11. Santa Cruz County

- Population that is fully vaccinated: 72.6% (198,422 fully vaccinated)
--- 6.5% higher vaccination rate than California
- Cumulative deaths per 100k: 87 (237 total deaths)
--- 55.6% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,313 (33,640 total cases)
--- 33.2% less cases per 100k residents than California
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Stan Shebs // Wikicommons

#10. Napa County

- Population that is fully vaccinated: 75.6% (104,099 fully vaccinated)
--- 10.9% higher vaccination rate than California
- Cumulative deaths per 100k: 79 (109 total deaths)
--- 59.7% less deaths per 100k residents than California
- Cumulative cases per 100k: 14,671 (20,209 total cases)
--- 20.4% less cases per 100k residents than California
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Fred Hsu // Wikicommons

#9. Sonoma County

- Population that is fully vaccinated: 75.7% (373,978 fully vaccinated)
--- 11.0% higher vaccination rate than California
- Cumulative deaths per 100k: 85 (419 total deaths)
--- 56.6% less deaths per 100k residents than California
- Cumulative cases per 100k: 13,088 (64,701 total cases)
--- 29.0% less cases per 100k residents than California
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SD Dirk // Flickr

#8. San Diego County

- Population that is fully vaccinated: 78.0% (2,604,708 fully vaccinated)
--- 14.4% higher vaccination rate than California
- Cumulative deaths per 100k: 136 (4,547 total deaths)
--- 30.6% less deaths per 100k residents than California
- Cumulative cases per 100k: 19,206 (641,172 total cases)
--- 4.2% more cases per 100k residents than California
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Jennifer Williams // Wikimedia Commons

#7. Alameda County

- Population that is fully vaccinated: 78.6% (1,314,019 fully vaccinated)
--- 15.2% higher vaccination rate than California
- Cumulative deaths per 100k: 94 (1,566 total deaths)
--- 52.0% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,150 (203,059 total cases)
--- 34.1% less cases per 100k residents than California
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MARELBU // Wikimedia Commons

#6. Contra Costa County

- Population that is fully vaccinated: 79.6% (917,974 fully vaccinated)
--- 16.7% higher vaccination rate than California
- Cumulative deaths per 100k: 94 (1,086 total deaths)
--- 52.0% less deaths per 100k residents than California
- Cumulative cases per 100k: 13,418 (154,775 total cases)
--- 27.2% less cases per 100k residents than California
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Craig Howell // Wikimedia Commons

#5. San Mateo County

- Population that is fully vaccinated: 81.6% (625,396 fully vaccinated)
--- 19.6% higher vaccination rate than California
- Cumulative deaths per 100k: 76 (585 total deaths)
--- 61.2% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,382 (94,920 total cases)
--- 32.8% less cases per 100k residents than California
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Canva

#4. San Francisco County

- Population that is fully vaccinated: 81.6% (719,571 fully vaccinated)
--- 19.6% higher vaccination rate than California
- Cumulative deaths per 100k: 79 (694 total deaths)
--- 59.7% less deaths per 100k residents than California
- Cumulative cases per 100k: 11,726 (103,373 total cases)
--- 36.4% less cases per 100k residents than California
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Uladzik Kryhin // Shutterstock

#3. Santa Clara County

- Population that is fully vaccinated: 83.0% (1,600,131 fully vaccinated)
--- 21.7% higher vaccination rate than California
- Cumulative deaths per 100k: 103 (1,986 total deaths)
--- 47.4% less deaths per 100k residents than California
- Cumulative cases per 100k: 12,743 (245,673 total cases)
--- 30.9% less cases per 100k residents than California
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Cbl62 // Wikicommons

#2. Imperial County

- Population that is fully vaccinated: 83.2% (150,685 fully vaccinated)
--- 22.0% higher vaccination rate than California
- Cumulative deaths per 100k: 453 (821 total deaths)
--- 131.1% more deaths per 100k residents than California
- Cumulative cases per 100k: 27,796 (50,370 total cases)
--- 50.8% more cases per 100k residents than California
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Kglavin // Wikimedia Commons

#1. Marin County

- Population that is fully vaccinated: 85.4% (221,156 fully vaccinated)
--- 25.2% higher vaccination rate than California
- Cumulative deaths per 100k: 97 (251 total deaths)
--- 50.5% less deaths per 100k residents than California
- Cumulative cases per 100k: 10,957 (28,360 total cases)
--- 40.6% less cases per 100k residents than California

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