Map of New Hampshire

Click New Hampshire to zoom in and explore counties. Click any other state to visit its page.

How many counties are in New Hampshire?

New Hampshire has 10 counties. The list below includes each county, its FIPS code, and population.

Total counties 10 Current county count for New Hampshire.

Largest by population Hillsborough County 427,354 residents

Smallest by population Coos County 31,372 residents

New Hampshire county table

County list for New Hampshire with county FIPS codes and population totals.

County	State	County FIPS	Population
Hillsborough County	NH	33011	427,354
Rockingham County	NH	33015	320,689
Merrimack County	NH	33013	157,103
Strafford County	NH	33017	133,243
Grafton County	NH	33009	93,146
Cheshire County	NH	33005	77,703
Belknap County	NH	33001	65,027
Carroll County	NH	33003	52,448
Sullivan County	NH	33019	43,969
Coos County	NH	33007	31,372

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