Counties with highest COVID-19 infection rates in Idaho

Written by:
May 21, 2022
Greg L. Wright // 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 May 18 reached over 1 million COVID-19-related deaths and 83.4 million COVID-19 cases, according to Johns Hopkins University. Currently, 66.5% of the population is fully vaccinated, and 46.4% 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 May 17, 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: 12,899 (109 total cases)
--- 48.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 118 (1 total deaths)
--- 57.2% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 46.2% (390 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, 0% change from previous week)
- Cumulative cases per 100k: 14,286 (158 total cases)
--- 43.0% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 181 (2 total deaths)
--- 34.4% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 43.4% (480 fully vaccinated)
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John Stanton // Wikimedia Commons

#42. Lemhi County, ID

- New cases per 100k in the past week: 0 (0 new cases, -100% change from previous week)
- Cumulative cases per 100k: 15,709 (1,261 total cases)
--- 37.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 311 (25 total deaths)
--- 12.7% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 50.0% (4,016 fully vaccinated)
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Squelle // Wikimedia Commons

#41. Butte County, ID

- New cases per 100k in the past week: 0 (0 new cases, 0% change from previous week)
- Cumulative cases per 100k: 18,290 (475 total cases)
--- 27.1% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 347 (9 total deaths)
--- 25.7% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 52.4% (1,361 fully vaccinated)
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Tom Young // Wikimedia Commons

#40. Lincoln County, ID

- New cases per 100k in the past week: 0 (0 new cases, 0% change from previous week)
- Cumulative cases per 100k: 20,630 (1,107 total cases)
--- 17.8% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 280 (15 total deaths)
--- 1.4% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 42.0% (2,253 fully vaccinated)
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Dschwen // Wikimedia Commons

#39. Caribou County, ID

- New cases per 100k in the past week: 0 (0 new cases, -100% change from previous week)
- Cumulative cases per 100k: 20,825 (1,490 total cases)
--- 17.0% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 363 (26 total deaths)
--- 31.5% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 42.2% (3,016 fully vaccinated)
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wilson44691 // Wikimedia Commons

#38. Cassia County, ID

- New cases per 100k in the past week: 0 (0 new cases, -100% change from previous week)
- Cumulative cases per 100k: 20,940 (5,032 total cases)
--- 16.5% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 216 (52 total deaths)
--- 21.7% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 41.6% (10,004 fully vaccinated)
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Ian Poellet // Wikimedia Commons

#37. Benewah County, ID

- New cases per 100k in the past week: 0 (0 new cases, -100% change from previous week)
- Cumulative cases per 100k: 25,780 (2,397 total cases)
--- 2.8% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 441 (41 total deaths)
--- 59.8% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 53.0% (4,931 fully vaccinated)
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Ken Lund // Wikimedia Commons

#36. Franklin County, ID

- New cases per 100k in the past week: 7 (1 new cases, 0% change from previous week)
- Cumulative cases per 100k: 16,799 (2,331 total cases)
--- 33.0% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 209 (29 total deaths)
--- 24.3% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 46.2% (6,410 fully vaccinated)
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Ken Lund // Wikimedia Commons

#35. Minidoka County, ID

- New cases per 100k in the past week: 10 (2 new cases, 0% change from previous week)
- Cumulative cases per 100k: 20,129 (4,235 total cases)
--- 19.8% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 304 (64 total deaths)
--- 10.1% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 42.5% (8,951 fully vaccinated)
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PdxCobra // Wikimedia Commons

#34. Boise County, ID

- New cases per 100k in the past week: 13 (1 new cases, 0% change from previous week)
- Cumulative cases per 100k: 13,970 (1,094 total cases)
--- 44.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 179 (14 total deaths)
--- 35.1% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 33.9% (2,651 fully vaccinated)
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JERRYE & ROY KLOTZ MD // Wikimedia Commons

#33. Power County, ID

- New cases per 100k in the past week: 13 (1 new cases, 0% change from previous week)
- Cumulative cases per 100k: 19,151 (1,471 total cases)
--- 23.7% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 260 (20 total deaths)
--- 5.8% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 51.9% (3,988 fully vaccinated)
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Bathlander // Wikimedia Commons

#32. Jefferson County, ID

- New cases per 100k in the past week: 13 (4 new cases, -20% change from previous week)
- Cumulative cases per 100k: 20,237 (6,045 total cases)
--- 19.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 218 (65 total deaths)
--- 21.0% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 45.1% (13,485 fully vaccinated)
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Sam Beebe // Wikimedia Commons

#31. Washington County, ID

- New cases per 100k in the past week: 20 (2 new cases, +100% change from previous week)
- Cumulative cases per 100k: 23,484 (2,394 total cases)
--- 6.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 559 (57 total deaths)
--- 102.5% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 42.1% (4,287 fully vaccinated)
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Tricia Simpson // Wikimedia Commons

#30. Oneida County, ID

- New cases per 100k in the past week: 22 (1 new cases, 0% change from previous week)
- Cumulative cases per 100k: 17,700 (802 total cases)
--- 29.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 243 (11 total deaths)
--- 12.0% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 50.0% (2,264 fully vaccinated)
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tinosa // Wikimedia Commons

#29. Custer County, ID

- New cases per 100k in the past week: 23 (1 new cases, 0% change from previous week)
- Cumulative cases per 100k: 12,329 (532 total cases)
--- 50.8% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 209 (9 total deaths)
--- 24.3% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 49.4% (2,130 fully vaccinated)
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Ken Lund // Wikimedia Commons

#28. Adams County, ID

- New cases per 100k in the past week: 23 (1 new cases, 0% change from previous week)
- Cumulative cases per 100k: 16,395 (704 total cases)
--- 34.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 349 (15 total deaths)
--- 26.4% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 44.9% (1,929 fully vaccinated)
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Aualliso // Wikimedia Commons

#27. Fremont County, ID

- New cases per 100k in the past week: 23 (3 new cases, 0% change from previous week)
- Cumulative cases per 100k: 16,490 (2,160 total cases)
--- 34.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 214 (28 total deaths)
--- 22.5% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 46.6% (6,105 fully vaccinated)
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Lowjumpingfrog // Wikimedia Commons

#26. Teton County, ID

- New cases per 100k in the past week: 25 (3 new cases, 0% change from previous week)
- Cumulative cases per 100k: 22,435 (2,724 total cases)
--- 10.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 74 (9 total deaths)
--- 73.2% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 63.0% (7,654 fully vaccinated)
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Larry D. Moore // Wikimedia Commons

#25. Jerome County, ID

- New cases per 100k in the past week: 25 (6 new cases, -62% change from previous week)
- Cumulative cases per 100k: 24,996 (6,102 total cases)
--- 0.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 266 (65 total deaths)
--- 3.6% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 46.7% (11,392 fully vaccinated)
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Ken Lund // Wikimedia Commons

#24. Madison County, ID

- New cases per 100k in the past week: 25 (10 new cases, +150% change from previous week)
- Cumulative cases per 100k: 31,771 (12,679 total cases)
--- 26.7% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 125 (50 total deaths)
--- 54.7% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 56.2% (22,427 fully vaccinated)
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NPS photo // Wikimedia Commons

#23. Gooding County, ID

- New cases per 100k in the past week: 26 (4 new cases, -33% change from previous week)
- Cumulative cases per 100k: 21,727 (3,298 total cases)
--- 13.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 369 (56 total deaths)
--- 33.7% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 44.9% (6,817 fully vaccinated)
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rustejunk // Wikimedia Commons

#22. Lewis County, ID

- New cases per 100k in the past week: 26 (1 new cases, 0% change from previous week)
- Cumulative cases per 100k: 29,573 (1,135 total cases)
--- 17.9% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 756 (29 total deaths)
--- 173.9% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 52.9% (2,032 fully vaccinated)
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John D // Wikimedia Commons

#21. Gem County, ID

- New cases per 100k in the past week: 28 (5 new cases, -29% change from previous week)
- Cumulative cases per 100k: 20,324 (3,681 total cases)
--- 19.0% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 436 (79 total deaths)
--- 58.0% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 40.5% (7,344 fully vaccinated)
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KRRK // Wikimedia Commons

#20. Bingham County, ID

- New cases per 100k in the past week: 28 (13 new cases, +225% change from previous week)
- Cumulative cases per 100k: 20,987 (9,824 total cases)
--- 16.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 331 (155 total deaths)
--- 19.9% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 49.2% (23,018 fully vaccinated)
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Jcarr29 // Wikimedia Commons

#19. Bonneville County, ID

- New cases per 100k in the past week: 37 (44 new cases, +2% change from previous week)
- Cumulative cases per 100k: 25,999 (30,955 total cases)
--- 3.6% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 240 (286 total deaths)
--- 13.0% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 55.0% (65,432 fully vaccinated)
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Ian Poellet // Wikimedia Commons

#18. Payette County, ID

- New cases per 100k in the past week: 38 (9 new cases, -47% change from previous week)
- Cumulative cases per 100k: 23,331 (5,588 total cases)
--- 7.0% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 363 (87 total deaths)
--- 31.5% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 32.1% (7,680 fully vaccinated)
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United States Department of Agriculture // Wikimedia Commons

#17. Owyhee County, ID

- New cases per 100k in the past week: 42 (5 new cases, +400% change from previous week)
- Cumulative cases per 100k: 19,251 (2,276 total cases)
--- 23.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 448 (53 total deaths)
--- 62.3% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 36.2% (4,279 fully vaccinated)
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Michlaovic // Wikimedia

#16. Bannock County, ID

- New cases per 100k in the past week: 42 (37 new cases, +12% change from previous week)
- Cumulative cases per 100k: 23,836 (20,930 total cases)
--- 5.0% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 281 (247 total deaths)
--- 1.8% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 52.9% (46,476 fully vaccinated)
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Karthikc123 // Wikimedia Commons

#15. Twin Falls County, ID

- New cases per 100k in the past week: 45 (39 new cases, -17% change from previous week)
- Cumulative cases per 100k: 27,793 (24,146 total cases)
--- 10.8% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 340 (295 total deaths)
--- 23.2% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 50.7% (44,050 fully vaccinated)
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Forest Service Northern Region from Missoula, MT, USA // Wikimedia Commons

#14. Idaho County, ID

- New cases per 100k in the past week: 48 (8 new cases, +33% change from previous week)
- Cumulative cases per 100k: 17,910 (2,985 total cases)
--- 28.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 312 (52 total deaths)
--- 13.0% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 31.7% (5,276 fully vaccinated)
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Tricia Simpson // Wikimedia Commons

#13. Bear Lake County, ID

- New cases per 100k in the past week: 49 (3 new cases, +200% change from previous week)
- Cumulative cases per 100k: 14,971 (917 total cases)
--- 40.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 261 (16 total deaths)
--- 5.4% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 47.3% (2,900 fully vaccinated)
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Tamanoeconomico // Wikimedia Commons

#12. Canyon County, ID

- New cases per 100k in the past week: 50 (114 new cases, +70% change from previous week)
- Cumulative cases per 100k: 26,856 (61,729 total cases)
--- 7.1% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 298 (685 total deaths)
--- 8.0% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 46.8% (107,672 fully vaccinated)
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Antony-22 // Wikimedia Commons

#11. Kootenai County, ID

- New cases per 100k in the past week: 53 (87 new cases, +26% change from previous week)
- Cumulative cases per 100k: 25,453 (42,175 total cases)
--- 1.5% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 358 (594 total deaths)
--- 29.7% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 47.3% (78,348 fully vaccinated)
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jfergusonphotos // Shutterstock

#10. Shoshone County, ID

- New cases per 100k in the past week: 54 (7 new cases, +250% change from previous week)
- Cumulative cases per 100k: 21,317 (2,746 total cases)
--- 15.0% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 590 (76 total deaths)
--- 113.8% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 44.0% (5,669 fully vaccinated)
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L'Aquatique // Wikimedia Commons

#9. Bonner County, ID

- New cases per 100k in the past week: 61 (28 new cases, -7% change from previous week)
- Cumulative cases per 100k: 19,561 (8,947 total cases)
--- 22.0% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 411 (188 total deaths)
--- 48.9% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 44.1% (20,175 fully vaccinated)
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Larry D. Moore // Wikimedia Commons

#8. Elmore County, ID

- New cases per 100k in the past week: 62 (17 new cases, -37% change from previous week)
- Cumulative cases per 100k: 26,422 (7,269 total cases)
--- 5.3% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 254 (70 total deaths)
--- 8.0% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 57.2% (15,724 fully vaccinated)
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Jon Roanhaus // Wikimedia Commons

#7. Clearwater County, ID

- New cases per 100k in the past week: 69 (6 new cases, 0% change from previous week)
- Cumulative cases per 100k: 26,542 (2,324 total cases)
--- 5.8% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 377 (33 total deaths)
--- 36.6% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 42.8% (3,748 fully vaccinated)
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Dsdugan // Wikimedia Commons

#6. Nez Perce County, ID

- New cases per 100k in the past week: 72 (29 new cases, +190% change from previous week)
- Cumulative cases per 100k: 22,181 (8,963 total cases)
--- 11.6% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 364 (147 total deaths)
--- 31.9% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 57.0% (23,025 fully vaccinated)
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Federal Highway Administration // Wikimedia Commons

#5. Boundary County, ID

- New cases per 100k in the past week: 73 (9 new cases, -10% change from previous week)
- Cumulative cases per 100k: 17,215 (2,108 total cases)
--- 31.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 506 (62 total deaths)
--- 83.3% more deaths per 100k residents than Idaho
- Population that is fully vaccinated: 36.0% (4,406 fully vaccinated)
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Apstrinka // Wikimedia Commons

#4. Latah County, ID

- New cases per 100k in the past week: 95 (38 new cases, +27% change from previous week)
- Cumulative cases per 100k: 16,987 (6,813 total cases)
--- 32.3% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 122 (49 total deaths)
--- 55.8% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 59.3% (23,799 fully vaccinated)
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Charles Knowles // Shutterstock

#3. Ada County, ID

- New cases per 100k in the past week: 109 (526 new cases, +17% change from previous week)
- Cumulative cases per 100k: 28,124 (135,440 total cases)
--- 12.1% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 212 (1,022 total deaths)
--- 23.2% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 64.5% (310,777 fully vaccinated)
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Karthikc123 // Wikimedia Commons

#2. Valley County, ID

- New cases per 100k in the past week: 123 (14 new cases, +133% change from previous week)
- Cumulative cases per 100k: 23,236 (2,647 total cases)
--- 7.4% less cases per 100k residents than Idaho
- Cumulative deaths per 100k: 140 (16 total deaths)
--- 49.3% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 62.7% (7,141 fully vaccinated)
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Greg L. Wright // Wikimedia Commons

#1. Blaine County, ID

- New cases per 100k in the past week: 143 (33 new cases, +94% change from previous week)
- Cumulative cases per 100k: 26,372 (6,071 total cases)
--- 5.1% more cases per 100k residents than Idaho
- Cumulative deaths per 100k: 130 (30 total deaths)
--- 52.9% less deaths per 100k residents than Idaho
- Population that is fully vaccinated: 83.5% (19,214 fully vaccinated)

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