Counties with highest COVID-19 infection rates in New Hampshire

Written by:
September 14, 2022
Jon Platek // Wikimedia Commons

Counties with highest COVID-19 infection rates in New Hampshire

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 New Hampshire 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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Americanadian 8 // Wikimedia Commons

#10. Coos County, NH

- New cases per 100k in the past week: 86 (27 new cases, +69% change from previous week)
- Cumulative cases per 100k: 24,836 (7,839 total cases)
--- 2.8% less cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 390 (123 total deaths)
--- 98.0% more deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available
2 / 10
TrunkJunk // Wikimedia Commons

#9. Sullivan County, NH

- New cases per 100k in the past week: 97 (42 new cases, -7% change from previous week)
- Cumulative cases per 100k: 25,036 (10,802 total cases)
--- 2.0% less cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 169 (73 total deaths)
--- 14.2% less deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available
3 / 10
Josh Conover // Shutterstock

#8. Grafton County, NH

- New cases per 100k in the past week: 101 (91 new cases, -13% change from previous week)
- Cumulative cases per 100k: 24,064 (21,630 total cases)
--- 5.8% less cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 88 (79 total deaths)
--- 55.3% less deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available
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NEKVT // Shutterstock

#7. Carroll County, NH

- New cases per 100k in the past week: 114 (56 new cases, +65% change from previous week)
- Cumulative cases per 100k: 23,024 (11,261 total cases)
--- 9.9% less cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 137 (67 total deaths)
--- 30.5% less deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available
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Graham Nadig // Flickr

#6. Hillsborough County, NH

- New cases per 100k in the past week: 121 (503 new cases, +28% change from previous week)
- Cumulative cases per 100k: 26,836 (111,913 total cases)
--- 5.0% more cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 230 (958 total deaths)
--- 16.8% more deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available
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Wangkun Jia // Shutterstock

#5. Rockingham County, NH

- New cases per 100k in the past week: 123 (381 new cases, +68% change from previous week)
- Cumulative cases per 100k: 25,208 (78,087 total cases)
--- 1.3% less cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 190 (589 total deaths)
--- 3.6% less deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available
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MoVaughn123 // Wikimedia Commons

#4. Strafford County, NH

- New cases per 100k in the past week: 132 (172 new cases, +37% change from previous week)
- Cumulative cases per 100k: 26,303 (34,361 total cases)
--- 2.9% more cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 174 (227 total deaths)
--- 11.7% less deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available
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Smuttynoser // Wikimedia Commons

#3. Merrimack County, NH

- New cases per 100k in the past week: 139 (211 new cases, +40% change from previous week)
- Cumulative cases per 100k: 24,378 (36,906 total cases)
--- 4.6% less cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 167 (253 total deaths)
--- 15.2% less deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available
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Ken Gallager // Wikimedia Commons

#2. Belknap County, NH

- New cases per 100k in the past week: 144 (88 new cases, +105% change from previous week)
- Cumulative cases per 100k: 25,920 (15,890 total cases)
--- 1.4% more cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 312 (191 total deaths)
--- 58.4% more deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available
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Jon Platek // Wikimedia Commons

#1. Cheshire County, NH

- New cases per 100k in the past week: 168 (128 new cases, +80% change from previous week)
- Cumulative cases per 100k: 22,982 (17,486 total cases)
--- 10.1% less cases per 100k residents than New Hampshire
- Cumulative deaths per 100k: 163 (124 total deaths)
--- 17.3% less deaths per 100k residents than New Hampshire
- Population that is fully vaccinated: not available

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