St. Charles, Missouri
St. Charles is a city in St. Charles County, Missouri, with 70,539 residents in 2020. It is in Missouri's 3rd congressional district. It spans 4 state house districts. Its state senate district is State Senate District 23.
County
| County | Share of residents |
|---|---|
| St. Charles County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Missouri's 3rd congressional district (MO-03) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Dan Borgmeyer | citywide | |
| U.S. Representative (MO-03) | Robert F. Onder, Jr. (R) | 202-225-2956 | 100% |
| 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 23) | Adam Schnelting (R) | 100% | |
| State Representative (State House District 106) | Travis Wilson (R) | 46% | |
| State Representative (State House District 105) | Colin Wellenkamp (R) | 45% | |
| State Representative (State House District 104) | Terri Violet (R) | 5.7% | |
| State Representative (State House District 65) | Wendy Hausman (R) | 3.3% |
From Wikidata (community-maintained); confirm on the city's website.
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); Mayors: Wikidata (CC0).
Local government
- St. Charles laws: search for the St. Charles, Missouri code of ordinances
- St. Charles County website: http://www.sccmo.org
- St. Charles County laws: search for the St. Charles County, Missouri code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 23 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 106 | 46% |
| State House District 105 | 45% |
| State House District 104 | 5.7% |
| State House District 65 | 3.3% |
ZIP codes
Percentages mark ZIPs only partly in St. Charles: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get St. Charles's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:2964082")
St. Charles here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.