McDuffie County, Georgia
County seat: Thomson · Population 21,640 (2025) · 257 sq mi
McDuffie County is the 84th most populous of Georgia's 159 counties, with 21,640 people (2025 estimate). Its county seat is Thomson. It is part of the Central Savannah River Area region, one of the 12 Georgia Regional Commissions. The map shows its 2 cities and towns and the 6 neighboring counties.
McDuffie County facts
- County seat
- Thomson
- Population (2025 estimate)
- 21,640 +0.1% since 2020
- Land area
- 257 sq mi 117th largest of 159
- Water area
- 9 sq mi
- Population density
- 84 per sq mi
- Established
- 1870
- Named after
- George McDuffie American politician (1790-1851)
- Largest city
- Thomson 6,763
- Median household income
- $56,733
- Cities and towns
- 2
- ZIP codes
- 4
- Time zone
- Eastern
- FIPS code
- 13189
Cities and towns in McDuffie County
McDuffie County has 2 incorporated cities, towns and villages. Populations count the people living inside McDuffie County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Thomson (county seat) | City | 6,763 | |
| Dearing | Town | 534 |
ZIP codes in McDuffie County
4 ZIP codes reach into McDuffie County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 30802 also Columbia County
- 30808 also Warren County
- 30814 also Columbia County
- 30824 also Warren and Columbia counties
Population of McDuffie County, 2020–2025
McDuffie County grew by 12 people (+0.1%) between April 2020 and July 2025: 228 more deaths than births and a net gain of 222 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 21,609 |
| 2021 | 21,631 |
| 2022 | 21,726 |
| 2023 | 21,854 |
| 2024 | 21,743 |
| 2025 | 21,640 |
Neighboring counties
- Warren County southwest · 5,269 people
- Columbia County east · 169,189 people
- Wilkes County northwest · 9,540 people
- Lincoln County north · 8,112 people
- Richmond County east · 206,559 people
- Jefferson County south · 15,011 people
Printable McDuffie County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (87 KB)
- PNG (2400 px) (103 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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