Boundary Atlas

Evanston, Illinois

Evanston is a city in Cook County, Illinois, with 78,110 residents in 2020. It is in Illinois's 9th congressional district. It spans 2 state house districts. Its state senate district is State Senate District 9.

78,110residents (2020 Census)
7.8 sq miland area
3ZIP codes
1congressional district

County

CountyShare of residents
Cook County100%

Congressional district

Congressional districtShare of residents
Illinois's 9th congressional district (IL-09)100%

Elected officials

OfficeMemberContactShare of residents
MayorDaniel Biss847-448-4311citywide
U.S. Representative (IL-09)Janice D. Schakowsky (D)202-225-2111100%
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 9)Laura Fine (Democratic)847-998-1717100%
State Representative (State House District 18)Robyn Gabel (Democratic)847-424-540190%
State Representative (State House District 17)Jen Gong-Gershowitz (Democratic)847-486-881010.0%

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 9100%

State house districtShare of residents
State House District 1890%
State House District 1710.0%

ZIP codes

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

Get this in your AI agent

Your agent can get Evanston'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:1724582")

Evanston 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.