County Dossier

Miami County

Indiana | County

Population

35,712

Land Area

373.8 sq mi

Context

Nonmetro

Geography

County silhouette

Land Area
373.8 sq mi
Water Area
3.5 sq mi
Water Share
0.9%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

35,712

Density
95.5 / sq mi
Households
13,318
Housing Units
14,952
Median Age
41.5 years

Income & Economy

Median Household Income

$61,139

GDP

$1.29B

Real GDP Change+3.8%
Per Capita Income
$30,463
Personal Income
$1.60B
Personal Income Per Capita
$44,940

Classification

RUCC 6
Nonmetro

Urban population of 5,000 to 20,000, adjacent to a metro area

Relief

Min

517 ft

Mean

781 ft

Max

898 ft

Provenance

GEOID 18103 ANSI 00450373
Latitude 40.77281 Longitude -86.04424
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