ZIP code 61854: Mansfield, IL
ZIP code 61854 is in Mansfield (65% of residents), in Piatt County (99%) and McLean County (0.6%), Illinois. 35% of its residents live outside city limits. It is in Illinois's 15th congressional district (99%) and Illinois's 16th congressional district (0.6%). Its state senate district is State Senate District 44; its state house district is State House District 88.
See it on the mapAll of Illinois
City and county
| City or town | Share of ZIP residents |
|---|---|
| Mansfield | 65% |
| County | Share of ZIP residents |
|---|---|
| Piatt County | 99% |
| McLean County | 0.6% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Blue Ridge township | 84% |
| Sangamon township | 16% |
| Bellflower township | 0.6% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 15th congressional district (IL-15) | 99% |
| Illinois's 16th congressional district (IL-16) | 0.6% |
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 | 99% |
| U.S. Representative (IL-16) | Darin LaHood (R) | 202-225-6201 | 0.6% |
| 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 44) | Sally Turner (R) | 217-651-8291 | 100% |
| State Representative (State House District 88) | Regan Deering (R) | 217-876-1968 | 100% |
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
- Mansfield laws: search for the Mansfield, Illinois code of ordinances
- Piatt County laws: search for the Piatt County, Illinois code of ordinances
- McLean County website: https://www.mcleancountyil.gov/
- McLean County laws: search for the McLean County, Illinois code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 44 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 88 | 100% |
Voting precincts
3 voting precincts overlap ZIP 61854. 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:61854")
ZIP 61854 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.