NH History & Facts
County Information - New Hampshire
By Cynthia Kirkeby
Jun 23, 2006, 18:21 PST

County Information for New Hampshire


There are 10 Counties in the state of New Hampshire.

The largest New Hampshire county by size is Coos County, which is 1,801 square miles.

The largest New Hampshire county by population is Hillsborough County, which has a population of 380,841.

Source: National Association of Counties


Here are New Hampshire QuickFacts from the U.S. Census Bureau.