Decatur County, Georgia

County seat: Bainbridge · Population 29,432 (2025) · 597 sq mi

Decatur County is the 66th most populous of Georgia's 159 counties, with 29,432 people (2025 estimate). Its county seat is Bainbridge. It is part of the Southwest Georgia region, one of the 12 Georgia Regional Commissions. The map shows its 4 cities and towns and the 6 neighboring counties.

Map of Decatur County, Georgia with cities, towns and the county boundary
Decatur County, Georgia with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

Decatur County facts

County seat
Bainbridge
Population (2025 estimate)
29,432 −0.2% since 2020
Land area
597 sq mi 12th largest of 159
Water area
26 sq mi
Population density
49 per sq mi
Established
1823
Named after
Stephen Decatur United States Navy officer
Largest city
Bainbridge 14,606
Median household income
$53,317
Cities and towns
4 plus 1 CDPs
ZIP codes
8
Time zone
Eastern
FIPS code
13087

Cities and towns in Decatur County

Decatur County has 4 incorporated cities, towns and villages. Populations count the people living inside Decatur County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
Bainbridge (county seat)City14,606
AttapulgusCity442
ClimaxCity265
BrinsonTown215

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Faceville142

ZIP codes in Decatur County

8 ZIP codes reach into Decatur County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Decatur County, 2020–2025

Decatur County shrank by 47 people (−0.2%) between April 2020 and July 2025: 276 more deaths than births and a net gain of 231 people from migration.

Year (July 1)Population
202029,436
202129,217
202229,146
202329,194
202429,463
202529,432

Neighboring counties

Printable Decatur County map

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Sources

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