County Dossier

Howard County

Maryland | County

Population

336,328

Land Area

251.0 sq mi

Context

Metro

Geography

County silhouette

Land Area
251.0 sq mi
Water Area
2.4 sq mi
Water Share
1.0%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

336,328

Density
1,340.2 / sq mi
Households
121,065
Housing Units
125,286
Median Age
39.8 years

Income & Economy

Median Household Income

$149,763

GDP

$37.13B

Real GDP Change+3.7%
Per Capita Income
$67,501
Personal Income
$33.89B
Personal Income Per Capita
$99,767

Classification

RUCC 1
Metro

Counties in metro areas of 1 million population or more

Relief

Min

-44 ft

Mean

446 ft

Max

879 ft

Provenance

GEOID 24027 ANSI 01709077
Latitude 39.25226 Longitude -76.92441
Canonical 2025 Gazetteer ACS ACS 2020-2024 5-year BEA BEA county 2024 release (2026-02-05) BLS BLS LAUS 2024 annual average USDA USDA RUCC 2023 USGS USGS 3DEP published as of 2026-03-23