County Dossier

Sweet Grass County

Montana | County

Population

3,720

Land Area

1,855.5 sq mi

Context

Nonmetro

Geography

County silhouette

Land Area
1,855.5 sq mi
Water Area
6.7 sq mi
Water Share
0.4%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

3,720

Density
2.0 / sq mi
Households
1,552
Housing Units
1,900
Median Age
47.0 years

Income & Economy

Median Household Income

$77,000

GDP

$314.84M

Real GDP Change+1.0%
Per Capita Income
$44,275
Personal Income
$249.96M
Personal Income Per Capita
$66,533

Classification

RUCC 8
Nonmetro

Urban population of fewer than 5,000, adjacent to a metro area

Relief

Min

3,751 ft

Mean

5,809 ft

Max

11,292 ft

Provenance

GEOID 30097 ANSI 01719569
Latitude 45.81129 Longitude -109.94480
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