Deer Park, Illinois
Deer Park is a village in Lake County (100% of residents) and Cook County (0.5%), Illinois, with 3,688 residents in 2020. It spans 2 congressional districts: IL-05 (100%) and IL-08 (0.4%). Its state senate district is State Senate District 26; its state house district is State House District 51.
County
| County | Share of residents |
|---|---|
| Lake County | 100% |
| Cook County | 0.5% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Illinois's 5th congressional district (IL-05) | 100% |
| Illinois's 8th congressional district (IL-08) | 0.4% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-05) | Mike Quigley (D) | 202-225-4061 | 100% |
| U.S. Representative (IL-08) | Raja Krishnamoorthi (D) | 202-225-3711 | 0.4% |
| 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 26) | Darby Hills (R) | 224-662-4544 | 100% |
| State Representative (State House District 51) | Nabeela Syed (Democratic) | 773-916-6553 | 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
- Deer Park website: http://www.villageofdeerpark.com/
- Deer Park laws: search for the Deer Park, Illinois code of ordinances
- Lake County website: https://www.lakecountyil.gov/
- Lake County laws: search for the Lake County, 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 26 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 51 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Deer Park: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Deer Park'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:1719083")
Deer Park 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.