Boundary Atlas

Lemont, Illinois

Lemont is a village in Cook County, Illinois, with 17,759 residents in 2020. It spans 2 congressional districts: IL-01 (51%) and IL-11 (49%). Its state senate district is State Senate District 41; its state house district is State House District 82.

17,759residents (2020 Census)
9.1 sq miland area
1ZIP codes
2congressional districts

County

CountyShare of residents
Cook County100%

Congressional districts

Congressional districtShare of residents
Illinois's 1st congressional district (IL-01)51%
Illinois's 11th congressional district (IL-11)49%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-01)Jonathan L. Jackson (D)202-225-437251%
U.S. Representative (IL-11)Bill Foster (D)202-225-351549%
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 41)John Curran (R)630-297-8058100%
State Representative (State House District 82)Nicole La Ha (R)630-755-4296100%

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 41100%

State house districtShare of residents
State House District 82100%

ZIP codes

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

Get this in your AI agent

Your agent can get Lemont'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:1742795")

Lemont 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.