Boundary Atlas

ZIP code 63128: Concord, MO

ZIP code 63128 is in Concord (41% of residents), Sappington (12%) and Sunset Hills (8.0%), in St. Louis County, Missouri. 39% of its residents live outside city limits. It is in Missouri's 2nd congressional district. Its state senate districts are State Senate District 1 (53%) and State Senate District 24 (47%); its state house districts are State House District 95 (39%), State House District 92 (36%), State House District 94 (16%) and State House District 96 (9.6%).

29,728residents (2020 Census)
15.6 sq miland area
3cities and towns
1congressional district
28voting precincts

See it on the mapAll of Missouri

City and county

City or townShare of ZIP residents
Concord41%
Sappington12%
Sunset Hills8.0%

CountyShare of ZIP residents
St. Louis County100%

Town or county subdivisionShare of ZIP residents
Tesson Ferry township74%
Concord township25%
Lemay township0.5%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MO-02)Ann Wagner (R)202-225-1621100%
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 1)Doug Beck (Democratic)53%
State Senator (State Senate District 24)Tracy McCreery (Democratic)47%
State Representative (State House District 92)Michael Burton (Democratic)36%
State Representative (State House District 94)Jim Murphy (R)16%
State Representative (State House District 96)Brad Christ (R)9.6%

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 153%
State Senate District 2447%

State house districtShare of ZIP residents
State House District 9539%
State House District 9236%
State House District 9416%
State House District 969.6%

Voting precincts

28 voting precincts overlap ZIP 63128. 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:63128")

ZIP 63128 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.