AreaVibes reveals the best places to live in New Hampshire for 2016 using our Livability Score. The Livability Score for each city in New Hampshire is calculated out of 100 from a unique algorithm based on various metrics, including: amenities, cost of living, crime, education, employment, housing and weather. New Hampshire has a population of 1,317,474 and a population density of 141.3 people per square mile. The capital city is Concord and the largest city in New Hampshire is Manchester. To filter the results, use the dropdown options to sort by population or category.