County Dossier

Knox County

Maine | County

Population

41,003

Land Area

364.9 sq mi

Context

Nonmetro

Geography

County silhouette

Land Area
364.9 sq mi
Water Area
767.4 sq mi
Water Share
67.8%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

41,003

Density
112.4 / sq mi
Households
18,484
Housing Units
24,564
Median Age
49.5 years

Income & Economy

Median Household Income

$74,096

GDP

$2.63B

Real GDP Change+0.8%
Per Capita Income
$44,763
Personal Income
$2.93B
Personal Income Per Capita
$71,509

Classification

RUCC 7
Nonmetro

Urban population of 5,000 to 20,000, not adjacent to a metro area

Relief

Min

-195 ft

Mean

66 ft

Max

1,366 ft

Provenance

GEOID 23013 ANSI 00581292
Latitude 44.04205 Longitude -69.03851
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