Counties with highest COVID-19 infection rates in Idaho

Written by:
September 14, 2022
John Stanton // Wikimedia Commons

Counties with highest COVID-19 infection rates in Idaho

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.

The United States as of Sep. 28 reached over 1 million COVID-19-related deaths and 96.2 million COVID-19 cases, according to Johns Hopkins University. Currently, 67.8% of the population is fully vaccinated, and 48.7% of vaccinated people have received booster doses.

Stacker compiled a list of the counties with highest COVID-19 infection rates in Idaho using data from the U.S. Department of Health & Human Services and vaccination data from Covid Act Now. Counties are ranked by the highest infection rate per 100,000 residents within the week leading up to Sep. 22, 2022. Cumulative cases per 100,000 served as a tiebreaker.

Keep reading to see whether your county ranks among the highest COVID-19 infection rates in your state.

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Kristen Taylor // Wikimedia Commons

#44. Clark County, ID

- New cases per 100k in the past week: 0 (0 new cases, 0% change from previous week)
- Cumulative cases per 100k: 13,609 (115 total cases)
--- 50.7% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 118 (1 total deaths)
--- 59.2% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 43.1% (364 fully vaccinated)
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Cornellrockey04 // Wikimedia Commons

#43. Camas County, ID

- New cases per 100k in the past week: 0 (0 new cases, -100% change from previous week)
- Cumulative cases per 100k: 15,280 (169 total cases)
--- 44.7% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 181 (2 total deaths)
--- 37.4% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 43.9% (486 fully vaccinated)
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Aualliso // Wikimedia Commons

#42. Fremont County, ID

- New cases per 100k in the past week: 0 (0 new cases, -100% change from previous week)
- Cumulative cases per 100k: 17,811 (2,333 total cases)
--- 35.5% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 229 (30 total deaths)
--- 20.8% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 46.3% (6,068 fully vaccinated)
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Sam Beebe // Wikimedia Commons

#41. Washington County, ID

- New cases per 100k in the past week: 10 (1 new cases, -80% change from previous week)
- Cumulative cases per 100k: 24,956 (2,544 total cases)
--- 9.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 569 (58 total deaths)
--- 96.9% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 40.7% (4,154 fully vaccinated)
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Ken Lund // Wikimedia Commons

#40. Franklin County, ID

- New cases per 100k in the past week: 14 (2 new cases, -50% change from previous week)
- Cumulative cases per 100k: 18,010 (2,499 total cases)
--- 34.8% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 216 (30 total deaths)
--- 25.3% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 45.7% (6,345 fully vaccinated)
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JERRYE & ROY KLOTZ MD // Wikimedia Commons

#39. Power County, ID

- New cases per 100k in the past week: 26 (2 new cases, -75% change from previous week)
- Cumulative cases per 100k: 20,349 (1,563 total cases)
--- 26.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 260 (20 total deaths)
--- 10.0% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 52.3% (4,016 fully vaccinated)
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Antony-22 // Wikimedia Commons

#38. Kootenai County, ID

- New cases per 100k in the past week: 39 (64 new cases, -22% change from previous week)
- Cumulative cases per 100k: 27,279 (45,201 total cases)
--- 1.2% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 382 (633 total deaths)
--- 32.2% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 47.4% (78,531 fully vaccinated)
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Lowjumpingfrog // Wikimedia Commons

#37. Teton County, ID

- New cases per 100k in the past week: 41 (5 new cases, +25% change from previous week)
- Cumulative cases per 100k: 23,497 (2,853 total cases)
--- 14.9% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 74 (9 total deaths)
--- 74.4% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 63.9% (7,758 fully vaccinated)
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Dschwen // Wikimedia Commons

#36. Caribou County, ID

- New cases per 100k in the past week: 42 (3 new cases, +200% change from previous week)
- Cumulative cases per 100k: 22,278 (1,594 total cases)
--- 19.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 461 (33 total deaths)
--- 59.5% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 40.8% (2,919 fully vaccinated)
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Ken Lund // Wikimedia Commons

#35. Madison County, ID

- New cases per 100k in the past week: 43 (17 new cases, +42% change from previous week)
- Cumulative cases per 100k: 33,566 (13,395 total cases)
--- 21.5% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 138 (55 total deaths)
--- 52.2% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 56.1% (22,404 fully vaccinated)
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NPS photo // Wikimedia Commons

#34. Gooding County, ID

- New cases per 100k in the past week: 46 (7 new cases, -65% change from previous week)
- Cumulative cases per 100k: 24,455 (3,712 total cases)
--- 11.5% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 395 (60 total deaths)
--- 36.7% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 45.2% (6,866 fully vaccinated)
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Ken Lund // Wikimedia Commons

#33. Adams County, ID

- New cases per 100k in the past week: 47 (2 new cases, -60% change from previous week)
- Cumulative cases per 100k: 17,862 (767 total cases)
--- 35.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 349 (15 total deaths)
--- 20.8% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 44.6% (1,915 fully vaccinated)
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Karthikc123 // Wikimedia Commons

#32. Valley County, ID

- New cases per 100k in the past week: 53 (6 new cases, -50% change from previous week)
- Cumulative cases per 100k: 25,860 (2,946 total cases)
--- 6.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 140 (16 total deaths)
--- 51.6% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 63.4% (7,222 fully vaccinated)
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jfergusonphotos // Shutterstock

#31. Shoshone County, ID

- New cases per 100k in the past week: 54 (7 new cases, +75% change from previous week)
- Cumulative cases per 100k: 23,226 (2,992 total cases)
--- 15.9% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 613 (79 total deaths)
--- 112.1% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 43.8% (5,640 fully vaccinated)
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Tom Young // Wikimedia Commons

#30. Lincoln County, ID

- New cases per 100k in the past week: 56 (3 new cases, -50% change from previous week)
- Cumulative cases per 100k: 22,438 (1,204 total cases)
--- 18.8% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 280 (15 total deaths)
--- 3.1% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 42.2% (2,267 fully vaccinated)
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L'Aquatique // Wikimedia Commons

#29. Bonner County, ID

- New cases per 100k in the past week: 57 (26 new cases, +18% change from previous week)
- Cumulative cases per 100k: 21,384 (9,781 total cases)
--- 22.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 420 (192 total deaths)
--- 45.3% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 44.0% (20,117 fully vaccinated)
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Jcarr29 // Wikimedia Commons

#28. Bonneville County, ID

- New cases per 100k in the past week: 60 (72 new cases, -8% change from previous week)
- Cumulative cases per 100k: 28,256 (33,642 total cases)
--- 2.3% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 245 (292 total deaths)
--- 15.2% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 54.7% (65,115 fully vaccinated)
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John D // Wikimedia Commons

#27. Gem County, ID

- New cases per 100k in the past week: 61 (11 new cases, +38% change from previous week)
- Cumulative cases per 100k: 21,941 (3,974 total cases)
--- 20.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 453 (82 total deaths)
--- 56.7% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 40.8% (7,392 fully vaccinated)
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Apstrinka // Wikimedia Commons

#26. Latah County, ID

- New cases per 100k in the past week: 62 (25 new cases, +19% change from previous week)
- Cumulative cases per 100k: 18,530 (7,432 total cases)
--- 32.9% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 132 (53 total deaths)
--- 54.3% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 60.9% (24,440 fully vaccinated)
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Tricia Simpson // Wikimedia Commons

#25. Bear Lake County, ID

- New cases per 100k in the past week: 65 (4 new cases, -33% change from previous week)
- Cumulative cases per 100k: 16,980 (1,040 total cases)
--- 38.5% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 278 (17 total deaths)
--- 3.8% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 47.2% (2,890 fully vaccinated)
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Ian Poellet // Wikimedia Commons

#24. Benewah County, ID

- New cases per 100k in the past week: 65 (6 new cases, -50% change from previous week)
- Cumulative cases per 100k: 28,587 (2,658 total cases)
--- 3.5% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 452 (42 total deaths)
--- 56.4% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 53.9% (5,009 fully vaccinated)
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Bathlander // Wikimedia Commons

#23. Jefferson County, ID

- New cases per 100k in the past week: 67 (20 new cases, -13% change from previous week)
- Cumulative cases per 100k: 21,757 (6,499 total cases)
--- 21.2% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 218 (65 total deaths)
--- 24.6% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 43.9% (13,107 fully vaccinated)
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United States Department of Agriculture // Wikimedia Commons

#22. Owyhee County, ID

- New cases per 100k in the past week: 68 (8 new cases, -27% change from previous week)
- Cumulative cases per 100k: 21,128 (2,498 total cases)
--- 23.5% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 448 (53 total deaths)
--- 55.0% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 36.2% (4,285 fully vaccinated)
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Ken Lund // Wikimedia Commons

#21. Minidoka County, ID

- New cases per 100k in the past week: 71 (15 new cases, +15% change from previous week)
- Cumulative cases per 100k: 21,897 (4,607 total cases)
--- 20.7% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 314 (66 total deaths)
--- 8.7% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 44.1% (9,268 fully vaccinated)
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Federal Highway Administration // Wikimedia Commons

#20. Boundary County, ID

- New cases per 100k in the past week: 73 (9 new cases, +200% change from previous week)
- Cumulative cases per 100k: 18,628 (2,281 total cases)
--- 32.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 547 (67 total deaths)
--- 89.3% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 35.9% (4,395 fully vaccinated)
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Squelle // Wikimedia Commons

#19. Butte County, ID

- New cases per 100k in the past week: 77 (2 new cases, 0% change from previous week)
- Cumulative cases per 100k: 20,023 (520 total cases)
--- 27.5% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 424 (11 total deaths)
--- 46.7% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 50.1% (1,300 fully vaccinated)
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wilson44691 // Wikimedia Commons

#18. Cassia County, ID

- New cases per 100k in the past week: 79 (19 new cases, +58% change from previous week)
- Cumulative cases per 100k: 22,172 (5,328 total cases)
--- 19.7% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 229 (55 total deaths)
--- 20.8% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 44.2% (10,610 fully vaccinated)
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Tricia Simpson // Wikimedia Commons

#17. Oneida County, ID

- New cases per 100k in the past week: 88 (4 new cases, -56% change from previous week)
- Cumulative cases per 100k: 19,687 (892 total cases)
--- 28.7% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 243 (11 total deaths)
--- 15.9% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 47.2% (2,137 fully vaccinated)
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Tamanoeconomico // Wikimedia Commons

#16. Canyon County, ID

- New cases per 100k in the past week: 88 (203 new cases, -3% change from previous week)
- Cumulative cases per 100k: 29,264 (67,263 total cases)
--- 6.0% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 308 (708 total deaths)
--- 6.6% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 47.6% (109,356 fully vaccinated)
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KRRK // Wikimedia Commons

#15. Bingham County, ID

- New cases per 100k in the past week: 90 (42 new cases, +27% change from previous week)
- Cumulative cases per 100k: 22,809 (10,677 total cases)
--- 17.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 357 (167 total deaths)
--- 23.5% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 49.4% (23,121 fully vaccinated)
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Larry D. Moore // Wikimedia Commons

#14. Jerome County, ID

- New cases per 100k in the past week: 90 (22 new cases, -15% change from previous week)
- Cumulative cases per 100k: 27,843 (6,797 total cases)
--- 0.8% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 274 (67 total deaths)
--- 5.2% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 47.2% (11,528 fully vaccinated)
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Charles Knowles // Shutterstock

#13. Ada County, ID

- New cases per 100k in the past week: 100 (482 new cases, -17% change from previous week)
- Cumulative cases per 100k: 31,569 (152,034 total cases)
--- 14.3% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 223 (1,072 total deaths)
--- 22.8% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 66.0% (317,943 fully vaccinated)
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PdxCobra // Wikimedia Commons

#12. Boise County, ID

- New cases per 100k in the past week: 102 (8 new cases, +33% change from previous week)
- Cumulative cases per 100k: 15,937 (1,248 total cases)
--- 42.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 179 (14 total deaths)
--- 38.1% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 34.2% (2,678 fully vaccinated)
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Ian Poellet // Wikimedia Commons

#11. Payette County, ID

- New cases per 100k in the past week: 104 (25 new cases, -42% change from previous week)
- Cumulative cases per 100k: 26,266 (6,291 total cases)
--- 4.9% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 372 (89 total deaths)
--- 28.7% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 32.5% (7,792 fully vaccinated)
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Michlaovic // Wikimedia

#10. Bannock County, ID

- New cases per 100k in the past week: 110 (97 new cases, +13% change from previous week)
- Cumulative cases per 100k: 26,365 (23,151 total cases)
--- 4.5% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 298 (262 total deaths)
--- 3.1% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 53.6% (47,039 fully vaccinated)
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Greg L. Wright // Wikimedia Commons

#9. Blaine County, ID

- New cases per 100k in the past week: 113 (26 new cases, +73% change from previous week)
- Cumulative cases per 100k: 29,690 (6,835 total cases)
--- 7.5% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 139 (32 total deaths)
--- 51.9% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 83.8% (19,287 fully vaccinated)
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Karthikc123 // Wikimedia Commons

#8. Twin Falls County, ID

- New cases per 100k in the past week: 124 (108 new cases, -1% change from previous week)
- Cumulative cases per 100k: 31,147 (27,060 total cases)
--- 12.8% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 350 (304 total deaths)
--- 21.1% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 51.0% (44,316 fully vaccinated)
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Dsdugan // Wikimedia Commons

#7. Nez Perce County, ID

- New cases per 100k in the past week: 131 (53 new cases, +26% change from previous week)
- Cumulative cases per 100k: 24,473 (9,889 total cases)
--- 11.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 386 (156 total deaths)
--- 33.6% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 58.1% (23,459 fully vaccinated)
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Larry D. Moore // Wikimedia Commons

#6. Elmore County, ID

- New cases per 100k in the past week: 131 (36 new cases, +6% change from previous week)
- Cumulative cases per 100k: 30,428 (8,371 total cases)
--- 10.2% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 258 (71 total deaths)
--- 10.7% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 56.0% (15,394 fully vaccinated)
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Forest Service Northern Region from Missoula, MT, USA // Wikimedia Commons

#5. Idaho County, ID

- New cases per 100k in the past week: 132 (22 new cases, +69% change from previous week)
- Cumulative cases per 100k: 20,094 (3,349 total cases)
--- 27.2% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 342 (57 total deaths)
--- 18.3% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 31.3% (5,216 fully vaccinated)
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rustejunk // Wikimedia Commons

#4. Lewis County, ID

- New cases per 100k in the past week: 156 (6 new cases, -25% change from previous week)
- Cumulative cases per 100k: 32,986 (1,266 total cases)
--- 19.4% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 782 (30 total deaths)
--- 170.6% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 53.4% (2,051 fully vaccinated)
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Jon Roanhaus // Wikimedia Commons

#3. Clearwater County, ID

- New cases per 100k in the past week: 160 (14 new cases, +27% change from previous week)
- Cumulative cases per 100k: 28,712 (2,514 total cases)
--- 4.0% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 411 (36 total deaths)
--- 42.2% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 43.5% (3,807 fully vaccinated)
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tinosa // Wikimedia Commons

#2. Custer County, ID

- New cases per 100k in the past week: 185 (8 new cases, +60% change from previous week)
- Cumulative cases per 100k: 15,574 (672 total cases)
--- 43.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 209 (9 total deaths)
--- 27.7% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 48.0% (2,072 fully vaccinated)
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John Stanton // Wikimedia Commons

#1. Lemhi County, ID

- New cases per 100k in the past week: 187 (15 new cases, -42% change from previous week)
- Cumulative cases per 100k: 20,319 (1,631 total cases)
--- 26.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 349 (28 total deaths)
--- 20.8% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 48.2% (3,872 fully vaccinated)

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