DURHAM — In analyzing data estimates compiled by the U.S. Census Bureau, Kenneth M. Johnson, senior demographer at the University of New Hampshire’s Carsey School of Public Policy, found that the population of New Hampshire grew by 6,700 between July of 2017 and July of 2018 to 1,356,000.
This gain coupled with a population increase of 7,400 last year added 14,100 residents to the state between 2016 and 2018.
The gain is 50 percent greater than the increase between 2014 and 2016, though it remains modest compared to gains in the 1970s and 1980s.
Migration accounted for nearly all of this growth. The state had a net domestic migration gain of nearly 8,700 residents from other states between 2016 and 2018.
This is a striking change from a migration increase of just 600 between 2014 and 2016, as well as from earlier in the decade when more people left New Hampshire for other U.S. destinations than moved to the state. New Hampshire also received 5,200 immigrants from other nations between 2016 and 2018, somewhat fewer than in the past.
Births in New Hampshire now only minimally exceed deaths and thus contributed little to the population gain. The natural change was less than 400 between 2016 and 2018 because the 24,400 births in the period were largely offset by 24,000 deaths. Over the past decade, births have diminished because fertility rates are low and the child-bearing-age population has not grown.
In contrast, deaths increased because of population aging and more drug-related deaths.
Population gains are occurring both in metropolitan and rural areas of the state.
This analysis uses Census Bureau estimates that have been reasonably accurate in the past but should be interpreted with caution.