Berkeley, Illinois
Berkeley is a village in Cook County, Illinois, with 5,338 residents in 2020. It spans 2 congressional districts: IL-04 (57%) and IL-07 (43%). Its state senate district is State Senate District 4; its state house district is State House District 7.
County
| County | Share of residents |
|---|---|
| Cook County | 100% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Illinois's 4th congressional district (IL-04) | 57% |
| Illinois's 7th congressional district (IL-07) | 43% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-04) | Jesús G. "Chuy" García (D) | 202-225-8203 | 57% |
| U.S. Representative (IL-07) | Danny K. Davis (D) | 202-225-5006 | 43% |
| 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 4) | Kimberly Lightford (Democratic) | 708-632-4500 | 100% |
| State Representative (State House District 7) | Chris Welch (Democratic) | 708-450-1000 | 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
- Berkeley website: http://www.berkeley.il.us/
- Berkeley laws: search for the Berkeley, 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 4 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 7 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Berkeley: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Berkeley's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:1705404")
Berkeley 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.