New Hampshire Population 2025. According to a study conducted by the weldon cooper center for public service at the university of virginia, new hampshire's population is projected to expand. Quickfacts provides statistics for all states and counties, and for cities and towns with a population of 5,000 or more.
New hampshire’s population reached 1,377,529 on april 1, 2020, an increase of 61,000 residents (4.6 percent) since april 1, 2010 according to new 2020. For year 2030, new hampshire population is expected to grow 0.3% from 2025.