Boundary Atlas

ZIP code 63019: Crystal City, MO

ZIP code 63019 is in Crystal City, in Jefferson County, Missouri. It is in Missouri's 8th congressional district. Its state senate district is State Senate District 22; its state house district is State House District 114.

4,456residents (2020 Census)
3.4 sq miland area
2cities and towns
1congressional district
3voting precincts

See it on the mapAll of Missouri

City and county

City or townShare of ZIP residents
Crystal City100%
Herculaneum0.2%

CountyShare of ZIP residents
Jefferson County100%

Town or county subdivisionShare of ZIP residents
River View township100%
Joachim township0.2%

Congressional district

Congressional districtShare of ZIP residents
Missouri's 8th congressional district (MO-08)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 22100%

State house districtShare of ZIP residents
State House District 114100%

Voting precincts

3 voting precincts overlap ZIP 63019. 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:63019")

ZIP 63019 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.