New Hampshire Counties

Complete list of all 10 counties in New Hampshire with population, area, median income, and county seats — plus a free printable blank map.

Counties

Population

1,454,539

Area

8,953 sq mi

Capital

Concord

Time Zone

Eastern (ET)

Labeled outline map of New Hampshire counties. Download a printable version in SVG, PNG, or PDF.

All 11 New Hampshire counties

County	County Seat	Population ▼	Area	Median Income	Cities
Hillsborough	—	426,425	876 mi²	$109,155	28
Rockingham	—	319,082	695 mi²	$122,708	40
Merrimack	—	160,041	934 mi²	$99,334	28
Strafford	—	132,728	369 mi²	$95,464	15
Grafton	—	92,200	1,709 mi²	$97,968	38
Cheshire	—	78,089	707 mi²	$86,081	26
Belknap	—	60,615	400 mi²	$93,181	16
Oxford	—	60,019	0 mi²	$62,930	35
Carroll	—	51,651	931 mi²	$88,986	30
Sullivan	—	42,802	537 mi²	$78,993	17
Coos	—	30,887	1,795 mi²	$57,206	15

How many counties does New Hampshire have?

New Hampshire has 10 counties covering 8,953 square miles and roughly 1,454,539 residents. The state was admitted to the Union in 1788 as the 9th state, and the current county boundaries reflect more than a century of administrative subdivision.

The largest county by land area is Coos County at 1,795 square miles, home to about 30,887 residents. The most populous is Hillsborough with approximately 426,425 residents — a density of about 487 people per square mile.

New Hampshire’s capital is Concord, while the largest city is Manchester — a common pattern in the United States, where many states placed their capitals in smaller, more central towns rather than their largest commercial hubs.

Related resources

Download a printable outline of New Hampshire’s county boundaries from our blank map of New Hampshire page — available in SVG, PNG, and PDF.

Use the What County Am I In? tool to detect which New Hampshire county a GPS location or address falls in, or the Address to County Lookup for batch input.

For demographic radius analysis, the Find ZIP Codes in Radius and Population Within Radius tools let you draw a circle around any New Hampshire address and see every ZIP code and the total population inside.

Two SimpleMapLab studies cover New Hampshire specifically: the 100-mile radius around Concord measures how much of the state lives within 100 miles of its capitol, and the loneliest town in New Hampshire ranks the state’s most isolated inhabited place. The county-counts blog post puts New Hampshire’s 10 counties in national context.

Frequently asked questions

New Hampshire has 10 counties. The state was admitted to the Union in 1788 as the 9th state. County boundaries have shifted over time as the population spread and new administrative units were carved from existing ones.

Coos County is the largest by land area at 1,795 square miles, with about 30,887 residents.

Hillsborough is the most populous, with approximately 426,425 residents over 876 square miles.

Concord is the state capital. The largest city is Manchester — a common pattern in the US, where many states placed their capitals in smaller, more central towns rather than their largest commercial hubs.

Population, area, and demographic figures are aggregated from ZIP-code-level US Census data (via the SimpleMaps dataset) and the US Census Gazetteer. County boundaries used to render the map are from the US Atlas TopoJSON build of the Census Bureau's TIGER/Line shapefiles. The data is public domain.

Data sources

Population and demographics are aggregated from ZIP-code-level US Census data via the SimpleMaps dataset. Countiesboundaries are from the US Atlas TopoJSON build of the Census Bureau’s TIGER/Line shapefiles. Land area is from the Census Gazetteer. State counts follow the US Census Bureau’s definition of counties and county-equivalents (50 states + DC = 3,143). All sources are public domain.

Neighboring states