ZIP code 63012: Barnhart, MO
ZIP code 63012 is in Barnhart (53% of residents), Pevely (5.7%) and Imperial (2.7%), in Jefferson County, Missouri. 38% of its residents live outside city limits. It is in Missouri's 8th congressional district (100%) and Missouri's 3rd congressional district (0.3%). Its state senate district is State Senate District 22; its state house districts are State House District 113 (60%), State House District 112 (29%), State House District 114 (11%) and State House District 111 (0.3%).
See it on the mapAll of Missouri
City and county
| City or town | Share of ZIP residents |
|---|---|
| Barnhart | 53% |
| Pevely | 5.7% |
| Imperial | 2.7% |
| County | Share of ZIP residents |
|---|---|
| Jefferson County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Imperial township | 85% |
| Joachim township | 12% |
| Windsor township | 2.7% |
| Meramec township | 0.3% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Missouri's 8th congressional district (MO-08) | 100% |
| Missouri's 3rd congressional district (MO-03) | 0.3% |
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.
Members of Congress
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MO-08) | Jason Smith (R) | 202-225-4404 | 100% |
| U.S. Representative (MO-03) | Robert F. Onder, Jr. (R) | 202-225-2956 | 0.3% |
| U.S. Senator | Eric Schmitt (R) | 202-224-5721 · contact form | statewide |
| U.S. Senator | Josh Hawley (R) | 202-224-6154 · contact form | statewide |
Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 22 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 113 | 60% |
| State House District 112 | 29% |
| State House District 114 | 11% |
| State House District 111 | 0.3% |
Voting precincts
8 voting precincts overlap ZIP 63012. 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:63012")
ZIP 63012 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.