Tattnall County, Georgia

County seat: Reidsville · Population 24,376 (2025) · 481 sq mi

Tattnall County is the 80th most populous of Georgia's 159 counties, with 24,376 people (2025 estimate). Its county seat is Reidsville. It is part of the Heart of Georgia-Altamaha region, one of the 12 Georgia Regional Commissions. The map shows its 5 cities and towns and the 8 neighboring counties.

Map of Tattnall County, Georgia with cities, towns and the county boundary
Tattnall 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).

Tattnall County facts

County seat
Reidsville
Population (2025 estimate)
24,376 +0.4% since 2020
Land area
481 sq mi 30th largest of 159
Water area
8 sq mi
Population density
51 per sq mi
Established
1801
Named after
Josiah Tattnall American politician (1762-1803)
Largest city
Glennville 5,023
Median household income
$50,747
Cities and towns
5 plus 1 CDPs
ZIP codes
6
Time zone
Eastern
FIPS code
13267

Cities and towns in Tattnall County

Tattnall County has 5 incorporated cities, towns and villages. Populations count the people living inside Tattnall County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
GlennvilleCity5,023
Reidsville (county seat)City2,576
CollinsCity545
CobbtownCity344
ManassasCity62

Unincorporated communities (CDPs)

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

CommunityPopulationAlso in
Mendes327

ZIP codes in Tattnall County

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

Population of Tattnall County, 2020–2025

Tattnall County grew by 91 people (+0.4%) between April 2020 and July 2025: 50 more deaths than births and a net gain of 142 people from migration.

Year (July 1)Population
202024,328
202124,137
202224,063
202324,389
202424,390
202524,376

Neighboring counties

Printable Tattnall County map

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Sources

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