Boundary Atlas

ZIP code 63043: Maryland Heights, MO

ZIP code 63043 is in Maryland Heights, in St. Louis County, Missouri. It is in Missouri's 1st congressional district (74%) and Missouri's 2nd congressional district (26%). Its state senate districts are State Senate District 24 (100%) and State Senate District 14 (0.3%); its state house districts are State House District 87 (100%) and State House District 70 (0.3%).

22,362residents (2020 Census)
12.5 sq miland area
2cities and towns
2congressional districts
28voting precincts

See it on the mapAll of Missouri

City and county

City or townShare of ZIP residents
Maryland Heights100%
Bridgeton0.3%

CountyShare of ZIP residents
St. Louis County100%

Town or county subdivisionShare of ZIP residents
Maryland Heights township55%
Northwest township33%
Airport township12%
Midland township0.2%

Congressional districts

Congressional districtShare of ZIP residents
Missouri's 1st congressional district (MO-01)74%
Missouri's 2nd congressional district (MO-02)26%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MO-01)Wesley Bell (D)202-225-240674%
U.S. Representative (MO-02)Ann Wagner (R)202-225-162126%
U.S. SenatorEric Schmitt (R)202-224-5721 · contact formstatewide
U.S. SenatorJosh Hawley (R)202-224-6154 · contact formstatewide
State Senator (State Senate District 24)Tracy McCreery (Democratic)100%
State Senator (State Senate District 14)Brian Williams (Democratic)0.3%
State Representative (State House District 87)Connie Steinmetz (Democratic)100%
State Representative (State House District 70)Stephanie Boykin (Democratic)0.3%

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 24100%
State Senate District 140.3%

State house districtShare of ZIP residents
State House District 87100%
State House District 700.3%

Voting precincts

28 voting precincts overlap ZIP 63043. Map them, with each precinct's share of the ZIP's residents.

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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:63043")

ZIP 63043 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.