Boundary Atlas

Arlington Heights, Illinois

Arlington Heights is a village in Cook County, Illinois, with 77,790 residents in 2020. It spans 3 congressional districts: IL-05 (75%), IL-09 (17%) and IL-08 (8.3%). It spans 2 state house districts. Its state senate district is State Senate District 27.

77,790residents (2020 Census)
16.6 sq miland area
3ZIP codes
3congressional districts

County

CountyShare of residents
Cook County100%

Congressional districts

Congressional districtShare of residents
Illinois's 5th congressional district (IL-05)75%
Illinois's 9th congressional district (IL-09)17%
Illinois's 8th congressional district (IL-08)8.3%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-05)Mike Quigley (D)202-225-406175%
U.S. Representative (IL-09)Janice D. Schakowsky (D)202-225-211117%
U.S. Representative (IL-08)Raja Krishnamoorthi (D)202-225-37118.3%
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 27)Mark Walker (Democratic)847-749-1880100%
State Representative (State House District 54)Mary Beth Canty (Democratic)224-248-818767%
State Representative (State House District 53)Nicolle Grasse (Democratic)847-749-113733%

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 27100%

State house districtShare of residents
State House District 5467%
State House District 5333%

ZIP codes

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

Get this in your AI agent

Your agent can get Arlington Heights'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:1702154")

Arlington Heights 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.