Zion, Illinois
Zion is a city in Lake County, Illinois, with 24,695 residents in 2020. It is in Illinois's 10th congressional district. Its state senate district is State Senate District 31; its state house district is State House District 61.
County
| County | Share of residents |
|---|---|
| Lake County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Illinois's 10th congressional district (IL-10) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-10) | Bradley Scott Schneider (D) | 202-225-4835 | 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 31) | Mary Edly-Allen (Democratic) | 847-548-5631 | 100% |
| State Representative (State House District 61) | Joyce Mason (Democratic) | 847-485-9986 | 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
- Zion website: http://www.cityofzion.com/
- Zion laws: search for the Zion, Illinois code of ordinances
- Lake County website: https://www.lakecountyil.gov/
- Lake County laws: search for the Lake County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 31 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 61 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Zion: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Zion'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:1784220")
Zion 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.