County Dossier

Marlboro County

South Carolina | County

Population

25,975

Land Area

479.9 sq mi

Context

Nonmetro

Geography

County silhouette

Land Area
479.9 sq mi
Water Area
5.6 sq mi
Water Share
1.2%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

25,975

Density
54.1 / sq mi
Households
9,789
Housing Units
12,077
Median Age
41.7 years

Income & Economy

Median Household Income

$34,301

GDP

$965.24M

Real GDP Change+4.2%
Per Capita Income
$21,486
Personal Income
$1.05B
Personal Income Per Capita
$41,332

Classification

RUCC 6
Nonmetro

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

Relief

Min

45 ft

Mean

151 ft

Max

360 ft

Provenance

GEOID 45069 ANSI 01248011
Latitude 34.60167 Longitude -79.67944
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