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Norfolk County, Massachusetts

Norfolk County profile, demographic data, and geographic information.

Norfolk County is a county located in Massachusetts, United States of America. As of official census estimates, it has a reported population of 739,749. The land area covers 396.11 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Norfolk County
Official Title: Chairman
Address: 614 HIGH ST, DEDHAM MA 02026-1897

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 739,749 — 2025 / Census
Median Age 40.9 yrs ±0.2 2020-2024 / Census ACS 5-Year 2024
Total Households 283,368 ±824 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 295,227 ±233
Occupied Housing Units 283,368 ±824
Vacant Housing Units 11,859 ±863
Median Home Value $683,900 ±$5,690
Median Gross Rent $2,149 ±$29
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $130,739 ±$2,551
Per Capita Income $71,758 ±$887
Poverty Rate 6.7% ±0.4%
Population Below Poverty Level 47,744 ±2,592
Unemployment Rate 4.9% ±0.3%
Civilian Labor Force, Employed 394,106 ±2,453
Broadband Internet Rate 94.8% ±0.4%
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 NORWOOD MEM AP, MA US, located 1.4 miles from Norfolk County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 39.5° 20.6° 30.1° 3.41" —
February 42.3° 21.6° 32.0° 2.80" —
March 48.9° 29.5° 39.2° 3.72" —
April 61.2° 39.0° 50.1° 3.96" —
May 71.3° 47.9° 59.6° 3.30" —
June 80.4° 57.3° 68.8° 3.92" —
July 85.7° 62.8° 74.3° 3.03" —
August 84.3° 60.6° 72.4° 3.63" —
September 76.8° 52.1° 64.5° 3.82" —
October 65.7° 41.2° 53.4° 4.54" —
November 54.6° 33.6° 44.1° 3.69" —
December 44.3° 26.3° 35.3° 4.09" —
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: 25021. • 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.