County Dossier

Martin County

Indiana | County

Population

9,830

Land Area

335.8 sq mi

Context

Nonmetro

Geography

County silhouette

Land Area
335.8 sq mi
Water Area
4.6 sq mi
Water Share
1.4%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

9,830

Density
29.3 / sq mi
Households
3,904
Housing Units
4,583
Median Age
42.7 years

Income & Economy

Median Household Income

$68,594

GDP

$1.64B

Real GDP Change+6.4%
Per Capita Income
$33,135
Personal Income
$564.36M
Personal Income Per Capita
$57,214

Classification

RUCC 9
Nonmetro

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

Relief

Min

424 ft

Mean

586 ft

Max

864 ft

Provenance

GEOID 18101 ANSI 00451679
Latitude 38.70532 Longitude -86.80185
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