County Dossier

Hamilton County

Indiana | County

Population

365,056

Land Area

394.4 sq mi

Context

Metro

Geography

County silhouette

Land Area
394.4 sq mi
Water Area
8.1 sq mi
Water Share
2.0%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

365,056

Density
925.6 / sq mi
Households
137,252
Housing Units
144,746
Median Age
38.4 years

Income & Economy

Median Household Income

$121,530

GDP

$31.64B

Real GDP Change+5.5%
Per Capita Income
$60,278
Personal Income
$39.60B
Personal Income Per Capita
$104,283

Classification

RUCC 1
Metro

Counties in metro areas of 1 million population or more

Relief

Min

490 ft

Mean

851 ft

Max

978 ft

Provenance

GEOID 18057 ANSI 00450356
Latitude 40.05351 Longitude -86.02171
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