• county
  • FIPS 33001
  • Largest town: Laconia

Belknap County, New Hampshire

Belknap County had 65,257 residents in the Census Vintage 2024 estimate, on 401.9 square miles of land. It ranks 7th of 10 in New Hampshire by population and 9th by land area.

Population
65,257
#7 of 10 in New Hampshire · #841 in US
Area
401.9 sq mi
#9 of 10 in New Hampshire · #2,514 in US
Density
162 / sq mi
#5 of 10 in New Hampshire · #656 in US
Median household income
$91,333
#4 of 10 in New Hampshire · #228 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Belknap County within New Hampshire. Pin: Concord.

Measure from here

Tools and pages that start from Belknap County

Belknap County population, land area and income

Belknap County had 65,257 residents in the Census Vintage 2024 estimate, on 401.9 square miles of land. It ranks 7th of 10 in New Hampshire by population and 9th by land area. That works out to 162.4 people per square mile, 1.7 times the US average of 96.3, and in the top quarter nationally.

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

Its SAIPE 2023 median household income of $91,333 is in the top tenth among 3,143 counties with an estimate.

National rank among 3,144

Population

65,257

3144th1st

841st of 3,144 (US)

Land area

402 sq mi

3144th1st

2514th of 3,144 (US)

Density

162.4 / sq mi

3144th1st

656th of 3,144 (US)

Median household income

$91,333

3143rd1st

228th of 3,143 (US)

Rank within New Hampshire (10)

Population

65,257

10th1st

7th of 10 (NH)

Land area

402 sq mi

10th1st

9th of 10 (NH)

Density

162.4 / sq mi

10th1st

5th of 10 (NH)

Median household income

$91,333

10th1st

4th of 10 (NH)

How Belknap County's population changed since 2020

Belknap County gained 1,483 residents between the July 2020 and July 2024 estimates, a rise of 2.3%. That ranks 5th 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, Belknap County recorded 1,928 births and 3,517 deaths, a natural change of -1,589. Net international migration added +25 and net domestic migration, people moving to or from other US counties, came to +3,156. The largest single component was domestic migration, which added 3,156 people.

63.8k202064.6k202164.6k202265.0k202365.3k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,928
Deaths
3,517
Net international migration
+25
Net domestic migration
+3,156
Change, July 2023 to July 2024
+238

Where Belknap County is

The Census internal point of Belknap County is at 43.519100, -71.425400. 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 Belknap County outlined. Dots are towns of 1,000+ people with residents in it.

Coos County: -0.4%Carroll County: +4.7%Rockingham County: +2.5%Merrimack County: +2.5%Sullivan County: +2.2%Belknap County: +2.3%Strafford County: +2.4%Cheshire County: +2.0%Hillsborough County: +1.8%Grafton County: +2.0%
Change 2020 to 2024
  1. < +1.8%
  2. < +2.0%
  3. < +2.3%
  4. < +2.5%
  5. ≥ +2.5%
no data

Orange pin: Belknap County internal point. Dark pin: Concord.

Internal point

Decimal
43.519100, -71.425400
DMS
43°31'8.76"N 71°25'31.44"W
UTM
19N 303978.9E 4821320.4N
Geohash
drtpwdmt5
Plus code
87MCGH9F+JR

Towns in Belknap County

One incorporated place of 1,000+ people has residents in Belknap County, 17,310 people together, or 27% of the county. Each figure counts only the part of the town inside Belknap County; towns marked "part" extend into another county. The largest is Laconia with 17,310.

  1. 01Laconia17,310
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Belknap County

The Census 2024 county adjacency file lists 4 neighbors for Belknap County. The most populous is Merrimack County, NH, with 157,869 residents. Distances run between Census internal points in a straight line.

Distance to Concord and the nearest big city

Concord is 22.3 miles SSW of Belknap County's internal point in a straight line. The nearest place of 100,000 or more is Manchester, NH (population 116,386), 36.9 miles away. The nearest place of 10,000 or more is Laconia, NH (population 17,310), 4.9 miles away.

Belknap County FIPS code

The FIPS code of Belknap County is 33001: state code 33 for New Hampshire plus county code 001. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $91,333.

Questions people ask

What is the population of Belknap County, New Hampshire?

The Census Vintage 2024 estimate for July 1, 2024 is 65,257. That is up 1,483 people (2.3%) from the July 2020 estimate of 63,774.

What is the FIPS code of Belknap County?

33001. The first two digits (33) are New Hampshire; the last three (001) identify the county.

What is the largest town in Belknap County?

Laconia, with 17,310 residents inside Belknap County in 2024.

Which counties border Belknap County?

4 county-equivalents border it in the Census 2024 adjacency file: Merrimack County, NH; Strafford County, NH; Grafton County, NH; Carroll County, NH.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.