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Belknap County, New Hampshire

Belknap County profile, demographic data, and geographic information.

Belknap County is a county located in New Hampshire, United States of America. As of official census estimates, it has a reported population of 65,147. The land area covers 401.91 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Belknap County
Official Title: County Administrator
Address: 34 COUNTY DR, LACONIA NH 03246-2900

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 65,147 — 2025 / Census
Median Age 48.4 yrs ±0.5 2020-2024 / Census ACS 5-Year 2024
Total Households 26,337 ±724 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 39,003 ±49
Occupied Housing Units 26,337 ±724
Vacant Housing Units 12,666 ±734
Median Home Value $374,900 ±$10,174
Median Gross Rent $1,167 ±$72
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $92,783 ±$4,217
Per Capita Income $49,037 ±$2,273
Poverty Rate 8.5% ±1.2%
Population Below Poverty Level 5,394 ±744
Unemployment Rate 3.1% ±0.8%
Civilian Labor Force, Employed 33,327 ±858
Broadband Internet Rate 91.9% ±1%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at LAKEPORT 2, NH US, located 2.9 miles from Belknap County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 30.3° 11.7° 21.0° 3.08" 18.8"
February 33.7° 12.5° 23.1° 2.88" 16.9"
March 42.5° 21.2° 31.8° 3.39" 9.4"
April 55.6° 32.7° 44.1° 3.65" 1.6"
May 68.0° 44.5° 56.3° 3.47" 0.0"
June 76.6° 54.8° 65.7° 4.44" 0.0"
July 82.1° 60.4° 71.3° 4.61" 0.0"
August 80.8° 58.7° 69.8° 3.89" 0.0"
September 73.3° 51.5° 62.4° 3.77" 0.0"
October 60.1° 39.9° 50.0° 4.83" 0.3"
November 47.3° 30.0° 38.7° 3.68" 2.1"
December 36.2° 20.2° 28.2° 3.92" 12.8"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 33001. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.