ZIP code 61251: Fenton, IL
ZIP code 61251 is in Whiteside County, Illinois, outside any city or Census-designated place. It is in Illinois's 17th congressional district. Its state senate district is State Senate District 37; its state house district is State House District 73.
See it on the mapAll of Illinois
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Whiteside County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Fenton township | 83% |
| Newton township | 14% |
| Garden Plain township | 1.6% |
| Union Grove township | 1.0% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 17th congressional district (IL-17) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-17) | Eric Sorensen (D) | 202-225-5905 | 100% |
| 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 37) | Li Arellano (R) | 779-251-5003 | 100% |
| State Representative (State House District 73) | Ryan Spain (R) | 309-690-7373 | 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
- Whiteside County website: https://www.whitesidecountyil.gov/
- Whiteside County laws: search for the Whiteside County, Illinois code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 37 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 73 | 100% |
Voting precincts
4 voting precincts overlap ZIP 61251. 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:61251")
ZIP 61251 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.