Market insights · NH
New Hampshire: where people are moving, county by county
New Hampshire has 1,415,342 residents across 10 counties, up 2.7% in five years. Net movement with other states in 2022–2023: +2,168 tax returns and +$756.3M in income. Strongest net in-migration: Carroll County, Sullivan County, Belknap County.
All 10 counties
Largest first. Growth is the five-year change in Census population estimates; net movement is IRS tax returns (roughly households) moving in minus out, per 1,000 residents, 2022–2023. BizyFi calculations from those totals. Income, home value and rent: Census ACS 5-year 2024.
| County | Population | 5-yr growth | Net per 1,000 | Net income in | Median income | Median home | Median rent | |
|---|---|---|---|---|---|---|---|---|
| Hillsborough County | 433,415 | +2.5% | +0.1 | -$10.5M | $103,545 | $421,100 | $1,623 | Map |
| Rockingham County | 324,077 | +3.0% | +1.2 | +$342.7M | $118,331 | $497,500 | $1,687 | Map |
| Merrimack County | 158,078 | +2.6% | +2.4 | +$59.9M | $97,004 | $367,600 | $1,360 | Map |
| Strafford County | 135,043 | +3.0% | +2.8 | -$28.5M | $88,570 | $362,800 | $1,488 | Map |
| Grafton County | 93,225 | +2.2% | +1.3 | +$76.4M | $88,261 | $344,500 | $1,301 | Map |
| Cheshire County | 78,269 | +2.3% | +2.3 | +$30.6M | $83,329 | $280,100 | $1,276 | Map |
| Belknap County | 65,147 | +2.1% | +2.9 | +$131.3M | $92,783 | $374,900 | $1,167 | Map |
| Carroll County | 52,784 | +5.0% | +5.2 | +$109.2M | $86,463 | $388,900 | $1,195 | Map |
| Sullivan County | 43,961 | +2.1% | +3.3 | +$27.8M | $80,858 | $268,700 | $1,211 | Map |
| Coos County | 31,343 | +0.3% | +1.5 | +$17.4M | $57,677 | $188,900 | $876 | Map |
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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Growth, per-1,000 and state totals are BizyFi calculations; the IRS suppresses very small flows, shown as –. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.