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New Hampshire counties

Quick answer

New Hampshire has 10 counties and county equivalents holding 1,387,834 residents. The statewide sales tax base rate is 0% with no local add-ons.

All 10 counties

Ranked by population, Census 2019-2023 ACS 5-year estimates.

CountyPopulationMedian incomeMedian home valueMedian rent
Hillsborough County424,732$100,436$385,500$1,532
Rockingham County317,163$113,927$461,400$1,619
Merrimack County155,018$93,944$330,600$1,293
Strafford County131,743$86,564$332,400$1,413
Grafton County91,759$84,021$298,500$1,292
Cheshire County76,945$81,001$257,200$1,220
Belknap County64,300$87,983$340,000$1,184
Carroll County51,259$82,961$348,900$1,179
Sullivan County43,529$75,929$236,300$1,159
Coos County31,386$58,439$169,600$843

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

More New Hampshire data.