Ranking of New Hampshire Counties By Population in 2022

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2022, the Population for New Hampshire was 1.40M. Among all New Hampshire counties, Hillsborough County had the highest population (427.49K), followed by Rockingham County (319.63K), and Merrimack County (156.46K).

The chart below shows the top 10 counties, and the table below shows the ranking of all New Hampshire counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of New Hampshire Counties By Population in 2022
Hillsborough
Rockingham
Merrimack
Strafford
Grafton
Cheshire
Belknap
Carroll
Sullivan
Coos
Ranking of New Hampshire Counties By Population in 2022
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Rank County Population
1 Hillsborough County 427493
2 Rockingham County 319633
3 Merrimack County 156459
4 Strafford County 132571
5 Grafton County 93131
6 Cheshire County 77463
7 Belknap County 64705
8 Carroll County 52154
9 Sullivan County 43918
10 Coos County 31476