ZIP code 62234: Collinsville, IL
ZIP code 62234 is in Collinsville (77% of residents), in Madison County (87%) and St. Clair County (13%), Illinois. 23% of its residents live outside city limits. It is in Illinois's 13th congressional district (74%), Illinois's 15th congressional district (25%) and Illinois's 12th congressional district (0.4%). Its state senate districts are State Senate District 56 (91%) and State Senate District 55 (8.6%); its state house districts are State House District 112 (89%), State House District 109 (8.6%) and State House District 111 (2.8%).
See it on the mapAll of Illinois
City and county
| City or town | Share of ZIP residents |
|---|---|
| Collinsville | 77% |
| Maryville | 0.5% |
| Pontoon Beach | 0.1% |
| County | Share of ZIP residents |
|---|---|
| Madison County | 87% |
| St. Clair County | 13% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Collinsville township | 82% |
| Caseyville township | 8.6% |
| Canteen township | 4.0% |
| Nameoki township | 2.8% |
| Jarvis township | 2.2% |
| O'Fallon township | 0.3% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 13th congressional district (IL-13) | 74% |
| Illinois's 15th congressional district (IL-15) | 25% |
| Illinois's 12th congressional district (IL-12) | 0.4% |
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 (IL-13) | Nikki Budzinski (D) | 202-225-2371 | 74% |
| U.S. Representative (IL-15) | Mary E. Miller (R) | 202-225-5271 | 25% |
| U.S. Representative (IL-12) | Mike Bost (R) | 202-225-5661 | 0.4% |
| U.S. Senator | Richard J. Durbin (D) | 202-224-2152 · contact form | statewide |
| U.S. Senator | Tammy Duckworth (D) | 202-224-2854 · contact form | statewide |
| State Senator (State Senate District 56) | Erica Harriss (R) | 618-307-5789 | 91% |
| State Senator (State Senate District 55) | Jason Plummer (R) | 618-283-3000 | 8.6% |
| State Representative (State House District 112) | Katie Stuart (Democratic) | 618-365-6650 | 89% |
| State Representative (State House District 109) | Charlie Meier (R) | 618-651-0405 | 8.6% |
| State Representative (State House District 111) | Amy Elik (R) | 618-433-8046 | 2.8% |
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
- Collinsville website: http://www.discovercollinsville.com/
- Collinsville laws: search for the Collinsville, Illinois code of ordinances
- Madison County website: http://www.co.madison.il.us
- Madison County laws: search for the Madison County, Illinois code of ordinances
- St. Clair County laws: search for the St. Clair County, Illinois code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 56 | 91% |
| State Senate District 55 | 8.6% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 112 | 89% |
| State House District 109 | 8.6% |
| State House District 111 | 2.8% |
Voting precincts
30 voting precincts overlap ZIP 62234. 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:62234")
ZIP 62234 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.