Boundary Atlas

Berwyn, Illinois

Berwyn is a city in Cook County, Illinois, with 57,250 residents in 2020. It is in Illinois's 4th congressional district. It spans 3 state senate and 3 state house districts.

57,250residents (2020 Census)
3.9 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Cook County100%

Congressional district

Congressional districtShare of residents
Illinois's 4th congressional district (IL-04)100%

Elected officials

OfficeMemberContactShare of residents
MayorRobert J. Lovero708-788-2660citywide
U.S. Representative (IL-04)Jesús G. "Chuy" García (D)202-225-8203100%
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 11)Mike Porfirio (Democratic)708-430-251062%
State Senator (State Senate District 1)Javier Cervantes (Democratic)773-869-905033%
State Senator (State Senate District 4)Kimberly Lightford (Democratic)708-632-45004.8%
State Representative (State House District 21)Abdelnasser Rashid (Democratic)708-956-756362%
State Representative (State House District 2)Lisa Hernandez (Democratic)708-222-524033%
State Representative (State House District 8)La Shawn Ford (Democratic)773-750-08664.8%

Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); 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 1162%
State Senate District 133%
State Senate District 44.8%

State house districtShare of residents
State House District 2162%
State House District 233%
State House District 84.8%

ZIP codes

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

Get this in your AI agent

Your agent can get Berwyn'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:1705573")

Berwyn 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.