Boundary Atlas

ZIP code 60091: Wilmette, IL

ZIP code 60091 is in Wilmette, in Cook County, Illinois. It is in Illinois's 9th congressional district (66%) and Illinois's 10th congressional district (34%). Its state senate districts are State Senate District 9 (96%) and State Senate District 29 (3.8%); its state house districts are State House District 18 (55%), State House District 17 (41%) and State House District 57 (3.8%).

28,053residents (2020 Census)
5.3 sq miland area
1cities and towns
2congressional districts
21voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Wilmette100%

CountyShare of ZIP residents
Cook County100%

Town or county subdivisionShare of ZIP residents
New Trier township100%
Northfield township0.4%

Congressional districts

Congressional districtShare of ZIP residents
Illinois's 9th congressional district (IL-09)66%
Illinois's 10th congressional district (IL-10)34%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-09)Janice D. Schakowsky (D)202-225-211166%
U.S. Representative (IL-10)Bradley Scott Schneider (D)202-225-483534%
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)847-998-171796%
State Senator (State Senate District 29)Julie Morrison (Democratic)847-945-52003.8%
State Representative (State House District 18)Robyn Gabel (Democratic)847-424-540155%
State Representative (State House District 17)Jen Gong-Gershowitz (Democratic)847-486-881041%
State Representative (State House District 57)Tracy Katz Muhl (Democratic)847-715-90553.8%

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 ZIP residents
State Senate District 996%
State Senate District 293.8%

State house districtShare of ZIP residents
State House District 1855%
State House District 1741%
State House District 573.8%

Voting precincts

21 voting precincts overlap ZIP 60091. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:60091")

ZIP 60091 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.