Boundary Atlas

ZIP code 31328: Tybee Island, GA

ZIP code 31328 is in Tybee Island (91% of residents), in Chatham County, Georgia. 9.2% of its residents live outside city limits. It is in Georgia's 1st congressional district. Its state senate district is State Senate District 1; its state house district is State House District 166.

3,430residents (2020 Census)
9.2 sq miland area
1cities and towns
1congressional district
3voting precincts

See it on the mapAll of Georgia

City and county

City or townShare of ZIP residents
Tybee Island91%

CountyShare of ZIP residents
Chatham County100%

Town or county subdivisionShare of ZIP residents
Tybee Island-Wilmington Island CCD100%

Congressional district

Congressional districtShare of ZIP residents
Georgia's 1st congressional district (GA-01)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1100%

State house districtShare of ZIP residents
State House District 166100%

Voting precincts

3 voting precincts overlap ZIP 31328. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:31328")

ZIP 31328 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.