Counties with highest COVID-19 infection rates in Arizona

Written by:
September 14, 2022
Andreas F. Borchert // Wikimedia Commons

Counties with highest COVID-19 infection rates in Arizona

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 Arizona 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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United States Bureau of Land Management // Wikimedia Commons

#15. La Paz County, AZ

- New cases per 100k in the past week: 24 (5 new cases, +150% change from previous week)
- Cumulative cases per 100k: 27,222 (5,746 total cases)
--- 12.5% less cases per 100k residents than Arizona
- Cumulative deaths per 100k: 715 (151 total deaths)
--- 66.7% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: 49.7% (10,490 fully vaccinated)
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Elnogalense // Wikimedia Commons

#14. Santa Cruz County, AZ

- New cases per 100k in the past week: 32 (15 new cases, -35% change from previous week)
- Cumulative cases per 100k: 39,795 (18,504 total cases)
--- 27.9% more cases per 100k residents than Arizona
- Cumulative deaths per 100k: 512 (238 total deaths)
--- 19.3% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: not available
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Ken Lund // Flickr

#13. Yuma County, AZ

- New cases per 100k in the past week: 33 (70 new cases, -47% change from previous week)
- Cumulative cases per 100k: 31,634 (67,629 total cases)
--- 1.7% more cases per 100k residents than Arizona
- Cumulative deaths per 100k: 564 (1,205 total deaths)
--- 31.5% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: 72.8% (155,698 fully vaccinated)
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Wars // Wikimedia Commons

#12. Graham County, AZ

- New cases per 100k in the past week: 33 (13 new cases, -24% change from previous week)
- Cumulative cases per 100k: 34,454 (13,381 total cases)
--- 10.8% more cases per 100k residents than Arizona
- Cumulative deaths per 100k: 471 (183 total deaths)
--- 9.8% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: 65.5% (25,442 fully vaccinated)
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Africaspotter // Wikimedia Commons

#11. Mohave County, AZ

- New cases per 100k in the past week: 45 (95 new cases, 0% change from previous week)
- Cumulative cases per 100k: 29,951 (63,550 total cases)
--- 3.7% less cases per 100k residents than Arizona
- Cumulative deaths per 100k: 727 (1,543 total deaths)
--- 69.5% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: 42.7% (90,626 fully vaccinated)
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Sean Pavone // Shutterstock

#10. Maricopa County, AZ

- New cases per 100k in the past week: 46 (2,048 new cases, -43% change from previous week)
- Cumulative cases per 100k: 31,734 (1,423,390 total cases)
--- 2.0% more cases per 100k residents than Arizona
- Cumulative deaths per 100k: 399 (17,910 total deaths)
--- 7.0% less deaths per 100k residents than Arizona
- Population that is fully vaccinated: 59.0% (2,646,308 fully vaccinated)
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Martha.baden // Wikimedia

#9. Yavapai County, AZ

- New cases per 100k in the past week: 57 (133 new cases, -17% change from previous week)
- Cumulative cases per 100k: 23,361 (54,922 total cases)
--- 24.9% less cases per 100k residents than Arizona
- Cumulative deaths per 100k: 546 (1,284 total deaths)
--- 27.3% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: 48.7% (114,532 fully vaccinated)
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zeesstof // Wikimedia Commons

#8. Pinal County, AZ

- New cases per 100k in the past week: 65 (302 new cases, -39% change from previous week)
- Cumulative cases per 100k: 31,811 (147,217 total cases)
--- 2.3% more cases per 100k residents than Arizona
- Cumulative deaths per 100k: 373 (1,726 total deaths)
--- 13.1% less deaths per 100k residents than Arizona
- Population that is fully vaccinated: 55.5% (256,851 fully vaccinated)
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Jay Yuan // Shutterstock

#7. Pima County, AZ

- New cases per 100k in the past week: 76 (795 new cases, -31% change from previous week)
- Cumulative cases per 100k: 27,757 (290,693 total cases)
--- 10.8% less cases per 100k residents than Arizona
- Cumulative deaths per 100k: 382 (3,996 total deaths)
--- 11.0% less deaths per 100k residents than Arizona
- Population that is fully vaccinated: 71.5% (748,481 fully vaccinated)
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Clay Gilliland // Flickr

#6. Cochise County, AZ

- New cases per 100k in the past week: 79 (100 new cases, -1% change from previous week)
- Cumulative cases per 100k: 28,623 (36,043 total cases)
--- 8.0% less cases per 100k residents than Arizona
- Cumulative deaths per 100k: 473 (595 total deaths)
--- 10.3% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: 67.6% (85,093 fully vaccinated)
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Alan Levine // Wikimedia Commons

#5. Gila County, AZ

- New cases per 100k in the past week: 81 (44 new cases, -10% change from previous week)
- Cumulative cases per 100k: 36,617 (19,780 total cases)
--- 17.7% more cases per 100k residents than Arizona
- Cumulative deaths per 100k: 735 (397 total deaths)
--- 71.3% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: 60.8% (32,823 fully vaccinated)
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HildaWeges Photography // Shutterstock

#4. Coconino County, AZ

- New cases per 100k in the past week: 89 (128 new cases, +5% change from previous week)
- Cumulative cases per 100k: 34,533 (49,546 total cases)
--- 11.0% more cases per 100k residents than Arizona
- Cumulative deaths per 100k: 346 (496 total deaths)
--- 19.3% less deaths per 100k residents than Arizona
- Population that is fully vaccinated: 79.7% (114,363 fully vaccinated)
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Bill Morrow // Wikimedia Commons

#3. Greenlee County, AZ

- New cases per 100k in the past week: 95 (9 new cases, +200% change from previous week)
- Cumulative cases per 100k: 25,953 (2,465 total cases)
--- 16.6% less cases per 100k residents than Arizona
- Cumulative deaths per 100k: 411 (39 total deaths)
--- 4.2% less deaths per 100k residents than Arizona
- Population that is fully vaccinated: 44.7% (4,246 fully vaccinated)
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Ixnayonthetimmay // Wikimedia Commons

#2. Navajo County, AZ

- New cases per 100k in the past week: 100 (111 new cases, -3% change from previous week)
- Cumulative cases per 100k: 39,754 (44,097 total cases)
--- 27.8% more cases per 100k residents than Arizona
- Cumulative deaths per 100k: 847 (939 total deaths)
--- 97.4% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: 80.2% (89,015 fully vaccinated)
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Andreas F. Borchert // Wikimedia Commons

#1. Apache County, AZ

- New cases per 100k in the past week: 182 (131 new cases, -23% change from previous week)
- Cumulative cases per 100k: 43,397 (31,197 total cases)
--- 39.5% more cases per 100k residents than Arizona
- Cumulative deaths per 100k: 868 (624 total deaths)
--- 102.3% more deaths per 100k residents than Arizona
- Population that is fully vaccinated: 95.0% (76,857 fully vaccinated)

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