County Dossier

Knox County

Indiana | County

Population

36,007

Land Area

515.8 sq mi

Context

Nonmetro

Geography

County silhouette

Land Area
515.8 sq mi
Water Area
8.1 sq mi
Water Share
1.5%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

36,007

Density
69.8 / sq mi
Households
15,169
Housing Units
16,974
Median Age
39.0 years

Income & Economy

Median Household Income

$61,237

GDP

$2.50B

Real GDP Change-3.7%
Per Capita Income
$34,279
Personal Income
$2.12B
Personal Income Per Capita
$59,222

Classification

RUCC 7
Nonmetro

Urban population of 5,000 to 20,000, not adjacent to a metro area

Relief

Min

338 ft

Mean

485 ft

Max

654 ft

Provenance

GEOID 18083 ANSI 00450366
Latitude 38.68838 Longitude -87.42036
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