Thornton, Illinois
Thornton is a village in Cook County, Illinois, with 2,386 residents in 2020. It is in Illinois's 2nd congressional district. Its state senate district is State Senate District 15; its state house district is State House District 29.
County
| County | Share of residents |
|---|---|
| Cook County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Illinois's 2nd congressional district (IL-02) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-02) | Robin L. Kelly (D) | 202-225-0773 | 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 15) | Napoleon Harris (Democratic) | 708-893-0552 | 100% |
| State Representative (State House District 29) | Thaddeus Jones (Democratic) | 708-825-1174 | 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
- Thornton website: http://www.thornton60476.com/
- Thornton laws: search for the Thornton, Illinois code of ordinances
- Cook County website: https://www.cookcountyil.gov/
- Cook County laws: search for the Cook County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 15 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 29 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Thornton: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Thornton'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:1775185")
Thornton 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.