Mount Prospect, Illinois
Mount Prospect is a village in Cook County, Illinois, with 56,854 residents in 2020. It spans 4 congressional districts: IL-05 (40%), IL-08 (27%), IL-09 (22%) and IL-03 (10%). It spans 3 state senate and 4 state house districts.
County
| County | Share of residents |
|---|---|
| Cook County | 100% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Illinois's 5th congressional district (IL-05) | 40% |
| Illinois's 8th congressional district (IL-08) | 27% |
| Illinois's 9th congressional district (IL-09) | 22% |
| Illinois's 3rd congressional district (IL-03) | 10% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-05) | Mike Quigley (D) | 202-225-4061 | 40% |
| U.S. Representative (IL-08) | Raja Krishnamoorthi (D) | 202-225-3711 | 27% |
| U.S. Representative (IL-09) | Janice D. Schakowsky (D) | 202-225-2111 | 22% |
| U.S. Representative (IL-03) | Delia C. Ramirez (D) | 202-225-5701 | 10% |
| 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 27) | Mark Walker (Democratic) | 847-749-1880 | 84% |
| State Senator (State Senate District 29) | Julie Morrison (Democratic) | 847-945-5200 | 11% |
| State Senator (State Senate District 28) | Laura Murphy (Democratic) | 847-718-1110 | 4.6% |
| State Representative (State House District 53) | Nicolle Grasse (Democratic) | 847-749-1137 | 76% |
| State Representative (State House District 57) | Tracy Katz Muhl (Democratic) | 847-715-9055 | 11% |
| State Representative (State House District 54) | Mary Beth Canty (Democratic) | 224-248-8187 | 8.1% |
| State Representative (State House District 56) | Michelle Mussman (Democratic) | 847-923-9104 | 4.6% |
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
- Mount Prospect website: https://www.mountprospect.org/
- Mount Prospect laws: search for the Mount Prospect, 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 27 | 84% |
| State Senate District 29 | 11% |
| State Senate District 28 | 4.6% |
| State house district | Share of residents |
|---|---|
| State House District 53 | 76% |
| State House District 57 | 11% |
| State House District 54 | 8.1% |
| State House District 56 | 4.6% |
ZIP codes
Percentages mark ZIPs only partly in Mount Prospect: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Mount Prospect'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:1751089")
Mount Prospect 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.