New Hampshire Net International Migration By County in 2021

Updated on June 21, 2025.

According to the US Census Bureau estimates, in 2021, the net international migration for New Hampshire was 1,542. Hillsborough County had the highest net international migration (850) followed by Rockingham County (173), and Grafton County (157). On the other hand, Coos County had the lowest net international migration (9), followed by Carroll County (15), and Sullivan County (17).

Net International migration for a given county refers to the difference between the number of people moving to the county from other parts of the world outside the borders of the United States (50 states and District of Columbia) and the number of people moving out of the county to other parts of the world outside the borders of the United States.

You can also see similar information for other states and also by state for the United States.

Hover over or click on the chart to see this information for each county. The data can also be filtered, sorted, and explored further in a table below.

See this for other years:
New Hampshire Net International Migration By County in 2021
New Hampshire Net International Migration By County in 2021
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County Net International Migration
Belknap 19
Carroll 15
Cheshire 31
Coos 9
Grafton 157
Hillsborough 850
Merrimack 152
Rockingham 173
Strafford 119
Sullivan 17