Carroll County, New Hampshire

Carroll County population, land area and income

Carroll County had 52,580 residents in the Census Vintage 2024 estimate, on 931.9 square miles of land. It ranks 8th of 10 in New Hampshire by population and 4th by land area. That works out to 56.4 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in New Hampshire has 85,562 residents; Carroll County is somewhat smaller.

Its SAIPE 2023 median household income of $77,303 is in the top quarter among 3,143 counties with an estimate.

How Carroll County's population changed since 2020

Carroll County gained 2,340 residents between the July 2020 and July 2024 estimates, a rise of 4.7%. That ranks 1st of 10 in New Hampshire for growth. The median New Hampshire county changed by +2.3%, and the state as a whole by +2.2%.

Since the April 2020 estimates base, Carroll County recorded 1,291 births and 2,791 deaths, a natural change of -1,500. Net international migration added +102 and net domestic migration, people moving to or from other US counties, came to +3,965. The largest single component was domestic migration, which added 3,965 people.

Where Carroll County is

The Census internal point of Carroll County is at 43.867800, -71.201600. It sits in UTM zone 19N. The map shades New Hampshire's 10 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Carroll County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Carroll County

No incorporated place of 1,000 or more people has residents in Carroll County. Its 52,580 residents live in smaller towns, census-designated places, or unincorporated land, which the subcounty estimates do not list at this size.

Counties bordering Carroll County

The Census 2024 county adjacency file lists 6 neighbors for Carroll County, including 2 across a state line. The most populous is York County, ME, with 220,143 residents. Distances run between Census internal points in a straight line.

• ME

  York County, ME

  220,143 people

  41 mi SE

• Strafford County

  134,202 people

  41 mi SSE

• Grafton County

  93,045 people

  32 mi W

• Belknap County

  65,257 people

  27 mi SSW

• ME

  Oxford County, ME

  60,039 people

  49 mi NNE

• Coos County

  31,094 people

  54 mi N

Distance to Concord and the nearest big city

Concord is 48.7 miles SSW of Carroll County's internal point in a straight line. The nearest place of 100,000 or more is Manchester, NH (population 116,386), 62.2 miles away. The nearest place of 10,000 or more is Laconia, NH (population 17,310), 24.5 miles away.

Carroll County FIPS code

The FIPS code of Carroll County is 33003: state code 33 for New Hampshire plus county code 003. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $77,303.