County Dossier

Southeastern Connecticut Planning Region

Connecticut | Planning Region

Population

279,971

Land Area

598.1 sq mi

Context

Metro

Geography

County silhouette

Land Area
598.1 sq mi
Water Area
83.6 sq mi
Water Share
12.3%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

279,971

Density
468.1 / sq mi
Households
115,768
Housing Units
126,425
Median Age
41.1 years

Income & Economy

Median Household Income

$86,586

GDP

$24.09B

Per Capita Income
$47,133
Personal Income
$18.33B
Personal Income Per Capita
$64,845

Classification

RUCC 2
Metro

Counties in metro areas of 250,000 to 1 million population

Relief

Min

-17 ft

Mean

226 ft

Max

651 ft

Provenance

GEOID 09180 ANSI 02830253
Latitude 41.48477 Longitude -72.10167
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