ZIP code 61866: Rantoul, IL
ZIP code 61866 is in Rantoul (92% of residents), in Champaign County, Illinois. 8.1% of its residents live outside city limits. It is in Illinois's 2nd congressional district (97%) and Illinois's 15th congressional district (3.4%). Its state senate districts are State Senate District 52 (96%) and State Senate District 51 (3.9%); its state house districts are State House District 104 (96%) and State House District 101 (3.9%).
See it on the mapAll of Illinois
City and county
| City or town | Share of ZIP residents |
|---|---|
| Rantoul | 92% |
| County | Share of ZIP residents |
|---|---|
| Champaign County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Rantoul township | 70% |
| Ludlow township | 27% |
| Harwood township | 1.7% |
| Compromise township | 0.4% |
| Condit township | 0.3% |
| East Bend township | 0.2% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 2nd congressional district (IL-02) | 97% |
| Illinois's 15th congressional district (IL-15) | 3.4% |
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-02) | Robin L. Kelly (D) | 202-225-0773 | 97% |
| U.S. Representative (IL-15) | Mary E. Miller (R) | 202-225-5271 | 3.4% |
| 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 52) | Paul Faraci (Democratic) | 217-355-5252 | 96% |
| State Senator (State Senate District 51) | Chapin Rose (R) | 217-607-1853 | 3.9% |
| State Representative (State House District 104) | Brandun Schweizer (R) | 217-477-0104 | 96% |
| State Representative (State House District 101) | Chris Miller (R) | 217-508-4108 | 3.9% |
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
- Rantoul website: http://www.myrantoul.com/
- Rantoul laws: search for the Rantoul, Illinois code of ordinances
- Champaign County website: http://champaigncountyil.gov
- Champaign County laws: search for the Champaign County, Illinois code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 52 | 96% |
| State Senate District 51 | 3.9% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 104 | 96% |
| State House District 101 | 3.9% |
Voting precincts
13 voting precincts overlap ZIP 61866. 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:61866")
ZIP 61866 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.