County Dossier

Montgomery County

Maryland | County

Population

1,065,949

Land Area

493.1 sq mi

Context

Metro

Geography

County silhouette

Land Area
493.1 sq mi
Water Area
13.8 sq mi
Water Share
2.7%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

1,065,949

Density
2,161.5 / sq mi
Households
389,210
Housing Units
406,531
Median Age
40.2 years

Income & Economy

Median Household Income

$132,450

GDP

$117.39B

Real GDP Change+1.2%
Per Capita Income
$67,571
Personal Income
$113.51B
Personal Income Per Capita
$104,882

Classification

RUCC 1
Metro

Counties in metro areas of 1 million population or more

Relief

Min

0 ft

Mean

406 ft

Max

883 ft

Provenance

GEOID 24031 ANSI 01712500
Latitude 39.13738 Longitude -77.20306
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