Largest by population in New Hampshire
New Hampshire counties and cities ranked by population.
This page ranks the counties and cities of New Hampshire by population — which have the most people, according to the US Census Bureau's American Community Survey 5-year estimates.
Among counties, Hillsborough County leads at 424,732.
Among cities & places, Manchester leads at 115,415.
Counties
| # | Name | Population | |
|---|---|---|---|
| 1 | Hillsborough County | 424,732 | |
| 2 | Rockingham County | 317,163 | |
| 3 | Merrimack County | 155,018 | |
| 4 | Strafford County | 131,743 | |
| 5 | Grafton County | 91,759 | |
| 6 | Cheshire County | 76,945 | |
| 7 | Belknap County | 64,300 | |
| 8 | Carroll County | 51,259 | |
| 9 | Sullivan County | 43,529 | |
| 10 | Coos County | 31,386 |
Cities & places
Top 100.Nationwide
1Other rankings in New Hampshire
20- Most densely populated in New Hampshire
- Highest median household income in New Hampshire
- Highest median home value in New Hampshire
- Most affordable home values in New Hampshire
- Highest median gross rent in New Hampshire
- Cheapest median gross rent in New Hampshire
- Oldest by median age in New Hampshire
- Youngest by median age in New Hampshire
- Most college-educated in New Hampshire
- Highest poverty rate in New Hampshire
- Lowest poverty rate in New Hampshire
- Highest homeownership rate in New Hampshire
- Lowest homeownership rate in New Hampshire
- Longest commutes in New Hampshire
- Shortest commutes in New Hampshire
- Largest households in New Hampshire
- Newest housing in New Hampshire
- Oldest housing in New Hampshire
- Fastest-growing (2019–2023) in New Hampshire
- Fastest-shrinking (2019–2023) in New Hampshire