Boundary Atlas

ZIP code 34945: St. Lucie County, FL

ZIP code 34945 is in Fort Pierce (3.0% of residents), in St. Lucie County, Florida. 97% of its residents live outside city limits. It is in Florida's 21st congressional district. Its state senate district is State Senate District 29; its state house district is State House District 84.

5,831residents (2020 Census)
217.4 sq miland area
2cities and towns
1congressional district
5voting precincts

See it on the mapAll of Florida

City and county

City or townShare of ZIP residents
Fort Pierce3.0%
Port St. Lucie0.8%

CountyShare of ZIP residents
St. Lucie County100%

Town or county subdivisionShare of ZIP residents
West St. Lucie CCD50%
Fort Pierce CCD50%

Congressional district

Congressional districtShare of ZIP residents
Florida's 21st congressional district (FL-21)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 29100%

State house districtShare of ZIP residents
State House District 84100%

Voting precincts

5 voting precincts overlap ZIP 34945. 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:34945")

ZIP 34945 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.