Chillicothe, Illinois
Chillicothe is a city in Peoria County, Illinois, with 6,128 residents in 2020. It is in Illinois's 16th congressional district. It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| Peoria County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Illinois's 16th congressional district (IL-16) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-16) | Darin LaHood (R) | 202-225-6201 | 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 | 78% |
| State Senator (State Senate District 53) | Chris Balkema (R) | 815-844-9179 | 22% |
| State Representative (State House District 73) | Ryan Spain (R) | 309-690-7373 | 78% |
| State Representative (State House District 105) | Dennis Tipsword (R) | 815-844-9344 | 22% |
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
- Chillicothe website: http://www.cityofchillicotheil.com/
- Chillicothe laws: search for the Chillicothe, Illinois code of ordinances
- Peoria County website: https://www.peoriacounty.gov/
- Peoria County laws: search for the Peoria County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 37 | 78% |
| State Senate District 53 | 22% |
| State house district | Share of residents |
|---|---|
| State House District 73 | 78% |
| State House District 105 | 22% |
ZIP codes
Percentages mark ZIPs only partly in Chillicothe: the share of that ZIP's residents living in it.
- 61523 (56%)
Get this in your AI agent
Your agent can get Chillicothe's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:1714117")
Chillicothe here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.