County Dossier

Grundy County

Iowa | County

Population

12,384

Land Area

501.9 sq mi

Context

Metro

Geography

County silhouette

Land Area
501.9 sq mi
Water Area
0.0 sq mi
Water Share
0.0%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

12,384

Density
24.7 / sq mi
Households
5,117
Housing Units
5,498
Median Age
41.9 years

Income & Economy

Median Household Income

$87,205

GDP

$731.67M

Real GDP Change-3.4%
Per Capita Income
$42,005
Personal Income
$803.53M
Personal Income Per Capita
$64,774

Classification

RUCC 3
Metro

Counties in metro areas of fewer than 250,000 population

Relief

Min

886 ft

Mean

1,023 ft

Max

1,153 ft

Provenance

GEOID 19075 ANSI 00465226
Latitude 42.40334 Longitude -92.79024
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