ZIP code 63631: Bellevue, MO
ZIP code 63631 is in Caledonia (17% of residents), in Washington County (87%) and Iron County (13%), Missouri. 83% of its residents live outside city limits. It is in Missouri's 3rd congressional district (87%) and Missouri's 8th congressional district (13%). Its state senate districts are State Senate District 3 (87%) and State Senate District 27 (13%); its state house district is State House District 144.
See it on the mapAll of Missouri
City and county
| City or town | Share of ZIP residents |
|---|---|
| Caledonia | 17% |
| County | Share of ZIP residents |
|---|---|
| Washington County | 87% |
| Iron County | 13% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Bellevue township | 73% |
| Belgrade township | 14% |
| Iron township | 9.7% |
| Kaolin township | 2.9% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Missouri's 3rd congressional district (MO-03) | 87% |
| Missouri's 8th congressional district (MO-08) | 13% |
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
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MO-03) | Robert F. Onder, Jr. (R) | 202-225-2956 | 87% |
| U.S. Representative (MO-08) | Jason Smith (R) | 202-225-4404 | 13% |
| U.S. Senator | Eric Schmitt (R) | 202-224-5721 · contact form | statewide |
| U.S. Senator | Josh Hawley (R) | 202-224-6154 · contact form | statewide |
| State Senator (State Senate District 3) | Mike Henderson (R) | 87% | |
| State Senator (State Senate District 27) | Jamie Burger (R) | 13% | |
| State Representative (State House District 144) | Tony Harbison (R) | 100% |
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
- Caledonia laws: search for the Caledonia, Missouri code of ordinances
- Washington County website: http://www.washingtoncountymo.us/
- Washington County laws: search for the Washington County, Missouri code of ordinances
- Iron County website: https://ironcountymo.gov/
- Iron County laws: search for the Iron County, Missouri code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 3 | 87% |
| State Senate District 27 | 13% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 144 | 100% |
Voting precincts
3 voting precincts overlap ZIP 63631. 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:63631")
ZIP 63631 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.