by Kristen Carney
Updated: June 20, 2024
The most populous counties in New Hampshire are Hillsborough County with 427,354, Rockingham County at 320,689, Merrimack County with 157,103, Strafford County at 133,243, and Grafton County with 93,146. You can get the most current Census population data for all 10 New Hampshire counties, sorted from the most populous counties in New Hampshire to the least, according to the 2023 Population Estimates Program.
Sure, you can copy this list right into your favorite spreadsheet tool. Or save yourself formatting headaches and grab the latest New Hampshire counties population data as a ready-to-use Excel™ file below. It's time to stop searching and start digging into data!
Rank | County | Population |
---|---|---|
1 | Hillsborough County | 427,354 |
2 | Rockingham County | 320,689 |
3 | Merrimack County | 157,103 |
4 | Strafford County | 133,243 |
5 | Grafton County | 93,146 |
6 | Cheshire County | 77,703 |
7 | Belknap County | 65,027 |
8 | Carroll County | 52,448 |
9 | Sullivan County | 43,969 |
10 | Coos County | 31,372 |
United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2023. Population Division. May 2024. |
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