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Howard County, Maryland

Howard County profile, demographic data, and geographic information.

Howard County is a county located in Maryland, United States of America. As of official census estimates, it has a reported population of 339,183. The land area covers 250.95 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Howard County
Official Title: Executive Assistant Ii
Address: 3430 COURT HOUSE DR, ELLICOTT CITY MD 21043-4350

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 339,183 — 2025 / Census
Median Age 39.8 yrs ±0.3 2020-2024 / Census ACS 5-Year 2024
Total Households 121,065 ±625 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 125,286 ±105
Occupied Housing Units 121,065 ±625
Vacant Housing Units 4,221 ±625
Median Home Value $597,900 ±$6,060
Median Gross Rent $2,099 ±$33
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $149,763 ±$3,158
Per Capita Income $67,501 ±$1,195
Poverty Rate 5.2% ±0.6%
Population Below Poverty Level 17,407 ±2,016
Unemployment Rate 3.5% ±0.4%
Civilian Labor Force, Employed 175,641 ±1,483
Broadband Internet Rate 96.6% ±0.6%
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 LAUREL 3 W, MD US, located 11.6 miles from Howard County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 42.7° 26.1° 34.4° 3.46" —
February 46.1° 28.0° 37.0° 2.73" —
March 54.8° 34.8° 44.8° 4.20" —
April 67.0° 44.9° 55.9° 3.80" —
May 75.5° 55.3° 65.4° 4.41" —
June 84.2° 64.5° 74.4° 4.38" —
July 88.6° 69.4° 79.0° 4.17" —
August 87.1° 67.9° 77.5° 3.80" —
September 80.0° 61.2° 70.6° 4.70" —
October 68.5° 49.7° 59.1° 4.41" —
November 57.1° 38.6° 47.8° 3.52" —
December 47.0° 31.4° 39.2° 3.93" —
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: 24027. • 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.