Boundary Atlas

ZIP code 63129: Oakville, MO

ZIP code 63129 is in Oakville (68% of residents) and Mehlville (27%), in St. Louis County, Missouri. 5.2% of its residents live outside city limits. It is in Missouri's 2nd congressional district. Its state senate district is State Senate District 1; its state house districts are State House District 94 (53%) and State House District 95 (47%).

53,432residents (2020 Census)
20.9 sq miland area
2cities and towns
1congressional district
32voting precincts

See it on the mapAll of Missouri

City and county

City or townShare of ZIP residents
Oakville68%
Mehlville27%

CountyShare of ZIP residents
St. Louis County100%

Town or county subdivisionShare of ZIP residents
Oakville township69%
Tesson Ferry township28%
Lemay township2.5%

Congressional district

Congressional districtShare of ZIP residents
Missouri's 2nd congressional district (MO-02)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1100%

State house districtShare of ZIP residents
State House District 9453%
State House District 9547%

Voting precincts

32 voting precincts overlap ZIP 63129. 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:63129")

ZIP 63129 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.