County Dossier

Putnam County

Illinois | County

Population

5,601

Land Area

160.1 sq mi

Context

Nonmetro

Geography

County silhouette

Land Area
160.1 sq mi
Water Area
12.0 sq mi
Water Share
7.0%

Terrain Layer

Open the county terrain view inside the atlas flow.

Terra Firma

Population & Housing

Population

5,601

Density
35.0 / sq mi
Households
2,465
Housing Units
3,090
Median Age
47.4 years

Income & Economy

Median Household Income

$75,590

GDP

$427.85M

Real GDP Change+3.9%
Per Capita Income
$40,375
Personal Income
$412.06M
Personal Income Per Capita
$73,151

Classification

RUCC 8
Nonmetro

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

Relief

Min

438 ft

Mean

603 ft

Max

801 ft

Provenance

GEOID 17155 ANSI 00424279
Latitude 41.19896 Longitude -89.29835
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