Migration to and from Belknap County, New Hampshire
Where Belknap County residents came from and where they went over the 5-year window 2016-2020. Census ACS County-to-County Migration Flows, 2020 5-yr (frozen vintage).
Total inflow
3,724
people moved in (5-yr)
Total outflow
4,862
people moved out (5-yr)
Net migration
-1,138
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Merrimack County | New Hampshire | 598 |
| Strafford County | New Hampshire | 410 |
| Grafton County | New Hampshire | 374 |
| Rockingham County | New Hampshire | 229 |
| Hillsborough County | New Hampshire | 221 |
| Carroll County | New Hampshire | 187 |
| Pima County | Arizona | 112 |
| Norfolk County | Massachusetts | 89 |
| Mohave County | Arizona | 80 |
| Middlesex County | Massachusetts | 79 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Collier County | Florida | 875 |
| Merrimack County | New Hampshire | 769 |
| Grafton County | New Hampshire | 438 |
| Hillsborough County | New Hampshire | 433 |
| Strafford County | New Hampshire | 290 |
| Carroll County | New Hampshire | 163 |
| Rockingham County | New Hampshire | 148 |
| Bexar County | Texas | 77 |
| Windsor County | Vermont | 77 |
| Cheshire County | New Hampshire | 68 |
Explore Belknap County
- Business data for Belknap CountyConstruction sector establishments, employment, payroll
- Cities in New HampshireACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in NHGovBids: RFPs, awards, NAICS matching
- New business filings in New HampshireNewFilings: fresh SOS registrations
Methodology
- Counts represent the number of people aged 1+ who reported a different residence at the survey reference date than they did one year earlier, aggregated across the 5-year sample window 2016-2020.
- Outbound (OUT) flows are reported less frequently than inbound (IN) because the survey captures the destination side of each move. Many county pairs have null OUT counts, which is normal.
- "Total inflow" sums the published MOVEDIN counts across all origin counties, including foreign-region inflows (Africa, Asia, Central America, etc.). It is not the same as net population change.
- Frozen vintage. The Census Bureau has not released a newer county-to-county migration flows file. The 2020 5-yr vintage (covering 2016-2020) is the latest available as of build date.
Source: U.S. Census Bureau, American Community Survey, County-to-County Migration Flows: 2016-2020. Vintage: 2020 5-yr. Generated: 2026-05-28. FIPS: 33001.