County Maps US

Chatham County, Georgia

A county in Georgia, ranked 5 of 159 by population.

CountyFIPS 13051

Within Georgia
Chatham County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Savannah, the county seat, located via the 2025 Census Gazetteer.

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Population
311,855
+16,742 (+5.7%) since 2020
Land area
432.8
square miles. A further 31.3% of the total area is water
Population density
721
people per square mile, computed rather than published
County seat
Savannah
Seat of county government.
Established
1777
248 years ago
Largest city
Savannah city
Population 149,440.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Chatham County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Chatham County, Georgia from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 732 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Chatham County ranks

Position among the 159 counties of Georgia, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn GeorgiaNationally
Population311,8555th of 159238th of 3,144
Land area432.8 sq mi46th of 1592,344th of 3,144
Population density721 per sq mi12th of 159210th of 3,144
Median household income$71,09743rd of 1591,123rd of 3,143

Full data for Chatham County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population311,855Vintage 2025 Population Estimates
Population in 2020295,113Vintage 2025 Population Estimates
2020 estimates base?295,261Vintage 2025 Population Estimates
Land area432.8 sq mi2025 Gazetteer Files
Water area197.2 sq mi2025 Gazetteer Files
Total area630 sq mi2025 Gazetteer Files
Population density?721 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$71,097American Community Survey 2020-2024 5-Year Estimates
Median home value$302,700American Community Survey 2020-2024 5-Year Estimates
Median age37.2American Community Survey 2020-2024 5-Year Estimates
Households120,383American Community Survey 2020-2024 5-Year Estimates
Housing units137,532American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+659
3,563 births, 2,904 deaths
Net migration
+1,611
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 4 areas bordering Chatham County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Bryan CountyGeorgia54 mi52,062
Jasper CountySouth Carolina38 mi38,533
Effingham CountyGeorgia18 mi74,397
Liberty CountyGeorgia6.1 mi70,313

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 159 counties of Georgia

Open the interactive Georgia county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.