Boundary Atlas

ZIP code 63628: Bonne Terre, MO

ZIP code 63628 is in Bonne Terre (42% of residents), Terre du Lac (15%), Lake Timberline (4.4%) and Desloge (3.3%), in St. Francois County (96%), Washington County (2.1%), Ste. Genevieve County (1.4%) and Jefferson County (0.2%), Missouri. 35% of its residents live outside city limits. It is in Missouri's 8th congressional district (98%) and Missouri's 3rd congressional district (2.1%). Its state senate district is State Senate District 3; its state house districts are State House District 117 (96%), State House District 144 (2.1%), State House District 145 (1.4%) and State House District 115 (0.2%).

16,373residents (2020 Census)
120.2 sq miland area
4cities and towns
2congressional districts
11voting precincts

See it on the mapAll of Missouri

City and county

City or townShare of ZIP residents
Bonne Terre42%
Terre du Lac15%
Lake Timberline4.4%
Desloge3.3%

CountyShare of ZIP residents
St. Francois County96%
Washington County2.1%
Ste. Genevieve County1.4%
Jefferson County0.2%

Town or county subdivisionShare of ZIP residents
Perry township75%
Big River township11%
Marion township5.7%
Randolph township4.7%
Breton township2.1%
Union township1.4%
Valle township0.2%
Union townshipland only

Congressional districts

Congressional districtShare of ZIP residents
Missouri's 8th congressional district (MO-08)98%
Missouri's 3rd congressional district (MO-03)2.1%

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-08)Jason Smith (R)202-225-440498%
U.S. Representative (MO-03)Robert F. Onder, Jr. (R)202-225-29562.1%
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 3)Mike Henderson (R)100%
State Representative (State House District 117)Becky Laubinger (R)96%
State Representative (State House District 144)Tony Harbison (R)2.1%
State Representative (State House District 145)Bryant Wolfin (R)1.4%
State Representative (State House District 115)Bill Lucas (R)0.2%

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 3100%

State house districtShare of ZIP residents
State House District 11796%
State House District 1442.1%
State House District 1451.4%
State House District 1150.2%

Voting precincts

11 voting precincts overlap ZIP 63628. 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:63628")

ZIP 63628 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.