County Dossier

King County

Washington | County

Population

2,287,171

Land Area

2,115.8 sq mi

Context

Metro

Geography

County silhouette

Land Area
2,115.8 sq mi
Water Area
191.7 sq mi
Water Share
8.3%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

2,287,171

Density
1,081.0 / sq mi
Households
941,054
Housing Units
1,003,284
Median Age
37.4 years

Income & Economy

Median Household Income

$124,746

GDP

$477.15B

Real GDP Change+5.8%
Per Capita Income
$74,100
Personal Income
$301.15B
Personal Income Per Capita
$128,684

Classification

RUCC 1
Metro

Counties in metro areas of 1 million population or more

Relief

Min

-2 ft

Mean

1,707 ft

Max

7,969 ft

Provenance

GEOID 53033 ANSI 01531933
Latitude 47.49055 Longitude -121.83398
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