Boundary Atlas

Mundelein, Illinois

Mundelein is a village in Lake County, Illinois, with 31,628 residents in 2020. It is in Illinois's 10th congressional district. It spans 2 state senate and 2 state house districts.

31,628residents (2020 Census)
10.9 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Lake County100%

Congressional district

Congressional districtShare of residents
Illinois's 10th congressional district (IL-10)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-10)Bradley Scott Schneider (D)202-225-4835100%
U.S. SenatorRichard J. Durbin (D)202-224-2152 · contact formstatewide
U.S. SenatorTammy Duckworth (D)202-224-2854 · contact formstatewide
State Senator (State Senate District 30)Adriane Johnson (Democratic)847-672-620162%
State Senator (State Senate District 26)Darby Hills (R)224-662-454438%
State Representative (State House District 59)Dan Didech (Democratic)847-478-990962%
State Representative (State House District 52)Marty McLaughlin (R)224-634-830038%

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

State legislative districts

State senate districtShare of residents
State Senate District 3062%
State Senate District 2638%

State house districtShare of residents
State House District 5962%
State House District 5238%

ZIP codes

Percentages mark ZIPs only partly in Mundelein: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Mundelein'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:1751349")

Mundelein 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.