Brookfield, Illinois
Brookfield is a village in Cook County, Illinois, with 19,476 residents in 2020. It is in Illinois's 4th congressional district. It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| Cook County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Illinois's 4th congressional district (IL-04) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-04) | Jesús G. "Chuy" García (D) | 202-225-8203 | 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 1) | Javier Cervantes (Democratic) | 773-869-9050 | 70% |
| State Senator (State Senate District 11) | Mike Porfirio (Democratic) | 708-430-2510 | 30% |
| State Representative (State House District 2) | Lisa Hernandez (Democratic) | 708-222-5240 | 70% |
| State Representative (State House District 21) | Abdelnasser Rashid (Democratic) | 708-956-7563 | 30% |
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
- Brookfield website: http://www.brookfieldil.gov/
- Brookfield laws: search for the Brookfield, 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 1 | 70% |
| State Senate District 11 | 30% |
| State house district | Share of residents |
|---|---|
| State House District 2 | 70% |
| State House District 21 | 30% |
ZIP codes
Percentages mark ZIPs only partly in Brookfield: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Brookfield'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:1708576")
Brookfield 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.