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Baltimore County, Maryland

Baltimore County profile, demographic data, and geographic information.

Baltimore County is a county located in Maryland, United States of America. As of official census estimates, it has a reported population of 847,650. The land area covers 598.36 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Baltimore County
Official Title: Keith Dorsey
Address: 400 WASHINGTON AVE, TOWSON MD 21204-4606

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 847,650 — 2025 / Census
Median Age 39.7 yrs ±0.2 2020-2024 / Census ACS 5-Year 2024
Total Households 332,801 ±1,226 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 350,821 ±189
Occupied Housing Units 332,801 ±1,226
Vacant Housing Units 18,020 ±1,175
Median Home Value $349,300 ±$2,553
Median Gross Rent $1,627 ±$17
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $91,768 ±$1,446
Per Capita Income $49,074 ±$738
Poverty Rate 9.8% ±0.5%
Population Below Poverty Level 81,318 ±4,280
Unemployment Rate 4.9% ±0.3%
Civilian Labor Force, Employed 428,901 ±3,125
Broadband Internet Rate 91.4% ±0.5%
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 MD SCI CTR BALTIMORE, MD US, located 11.2 miles from Baltimore County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 43.7° 30.0° 36.9° 3.07" —
February 46.8° 31.9° 39.4° 2.75" —
March 55.2° 38.7° 46.9° 3.93" —
April 66.8° 48.2° 57.5° 3.55" —
May 75.9° 58.0° 67.0° 3.39" —
June 85.4° 67.7° 76.6° 3.36" —
July 90.1° 72.9° 81.5° 4.71" —
August 87.3° 71.0° 79.1° 4.35" —
September 80.4° 64.5° 72.5° 4.49" —
October 68.8° 52.6° 60.7° 3.49" —
November 57.6° 42.6° 50.1° 2.98" —
December 48.0° 34.6° 41.3° 3.66" —
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: 24005. • 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.