County Dossier

Johnson County

Indiana | County

Population

166,315

Land Area

320.4 sq mi

Context

Metro

Geography

County silhouette

Land Area
320.4 sq mi
Water Area
1.4 sq mi
Water Share
0.4%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

166,315

Density
519.1 / sq mi
Households
62,554
Housing Units
65,915
Median Age
38.0 years

Income & Economy

Median Household Income

$90,454

GDP

$8.25B

Real GDP Change+2.0%
Per Capita Income
$43,995
Personal Income
$11.03B
Personal Income Per Capita
$64,637

Classification

RUCC 1
Metro

Counties in metro areas of 1 million population or more

Relief

Min

632 ft

Mean

767 ft

Max

1,017 ft

Provenance

GEOID 18081 ANSI 00450365
Latitude 39.49609 Longitude -86.09426
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