Market insights · New Hampshire
Grafton County, NH: growth, migration and housing
Grafton County has 93,225 residents, up 2.2% since 2020 (+0.3% in the last year). In 2022–2023, 3,509 households moved in and 3,391 moved out (+118 net), bringing in a net $76.4M of income. Median household income is $88,261, the median home $344,500 and median rent $1,301 a month.
In New Hampshire: 7th of 10 counties for 5-year population growth · 8th of 10 counties for net in-migration (per resident) · 6th of 10 counties for median household income · 7th of 10 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Grafton County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Merrimack County, NH | 208 | $15.4M |
| Windsor County, VT | 205 | $15.2M |
| Middlesex County, MA | 182 | $41.0M |
| Belknap County, NH | 157 | $10.3M |
| Hillsborough County, NH | 140 | $15.2M |
| Sullivan County, NH | 124 | $10.7M |
| Coos County, NH | 97 | $4.3M |
| Rockingham County, NH | 92 | $8.6M |
Where leavers went
Top counties by households leaving Grafton County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Merrimack County, NH | 205 | $16.8M |
| Windsor County, VT | 191 | $11.6M |
| Sullivan County, NH | 178 | $17.6M |
| Belknap County, NH | 151 | $9.3M |
| Hillsborough County, NH | 143 | $9.3M |
| Middlesex County, MA | 131 | $16.3M |
| Coos County, NH | 98 | $6.5M |
| New York County, NY | 92 | $7.7M |
BizyFi in Grafton County
3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse New Hampshire companies.
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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). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.