ZIP code 61920: Charleston, IL
ZIP code 61920 is in Charleston (83% of residents), in Coles County, Illinois. 17% of its residents live outside city limits. It is in Illinois's 15th congressional district (81%) and Illinois's 12th congressional district (19%). Its state senate district is State Senate District 51; its state house districts are State House District 101 (97%) and State House District 102 (2.9%).
See it on the mapAll of Illinois
City and county
| City or town | Share of ZIP residents |
|---|---|
| Charleston | 83% |
| County | Share of ZIP residents |
|---|---|
| Coles County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Charleston township | 93% |
| Hutton township | 2.9% |
| Seven Hickory township | 1.3% |
| Morgan township | 1.2% |
| Pleasant Grove township | 1.0% |
| Lafayette township | 0.7% |
| Humboldt township | 0.2% |
| Ashmore township | <0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 15th congressional district (IL-15) | 81% |
| Illinois's 12th congressional district (IL-12) | 19% |
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-15) | Mary E. Miller (R) | 202-225-5271 | 81% |
| U.S. Representative (IL-12) | Mike Bost (R) | 202-225-5661 | 19% |
| 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 51) | Chapin Rose (R) | 217-607-1853 | 100% |
| State Representative (State House District 101) | Chris Miller (R) | 217-508-4108 | 97% |
| State Representative (State House District 102) | Adam Niemerg (R) | 217-712-2126 | 2.9% |
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
- Charleston website: http://www.charlestonillinois.org/
- Charleston laws: search for the Charleston, Illinois code of ordinances
- Coles County laws: search for the Coles County, Illinois code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 51 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 101 | 97% |
| State House District 102 | 2.9% |
Voting precincts
25 voting precincts overlap ZIP 61920. 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:61920")
ZIP 61920 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.