Net migration, or the difference between how many people moved in and how many moved out, is one part of population change. The other part is natural change, or the difference between births and deaths.
From 2015 - 2016, New Hampshire...
Gained 702 residents due to natural change.
Had a net migration rate of .33 percent compared to .31 percent for the United States overall.
Gained 2,187 residents through net domestic migration and gained 2,175 residents through net international migration.
Had a natural change rate of .05 percent compared to .38 percent for the United States overall.
All data are July 1st Population Estimates
Source: 2000 and 2009: U.S. Bureau of the Census, Population Estimates Program, http://www.census.gov/popest/
Source: 2010-2016: U.S. Bureau of the Census, American Factfinder, http://factfinder2.census.gov/