County Dossier

Colusa County

California | County

Population

21,984

Land Area

1,150.6 sq mi

Context

Nonmetro

Geography

County silhouette

Land Area
1,150.6 sq mi
Water Area
5.7 sq mi
Water Share
0.5%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

21,984

Density
19.1 / sq mi
Households
7,512
Housing Units
8,211
Median Age
35.9 years

Income & Economy

Median Household Income

$75,672

GDP

$2.01B

Real GDP Change-9.8%
Per Capita Income
$33,882
Personal Income
$1.36B
Personal Income Per Capita
$61,656

Classification

RUCC 6
Nonmetro

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

Relief

Min

19 ft

Mean

796 ft

Max

7,017 ft

Provenance

GEOID 06011 ANSI 01675902
Latitude 39.17774 Longitude -122.23756
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