Population of Counties in New Hampshire (2017)

Name 2017 Population Growth Rate
Hillsborough County407,7611.68%
Rockingham County303,2512.68%
Merrimack County148,5821.47%
Strafford County127,4283.42%
Grafton County88,888-0.26%
Cheshire County75,774-1.68%
Belknap County60,7791.13%
Carroll County47,289-1.14%
Sullivan County43,004-1.71%
Coos County32,039-2.85%