Boundary Atlas

ZIP code 60540: Naperville, IL

ZIP code 60540 is in Naperville (86% of residents), in DuPage County, Illinois. 14% of its residents live outside city limits. It is in Illinois's 11th congressional district (100%) and Illinois's 6th congressional district (0.1%). Its state senate districts are State Senate District 21 (80%), State Senate District 41 (17%) and State Senate District 42 (2.7%); its state house districts are State House District 41 (76%), State House District 81 (17%), State House District 42 (4.5%) and State House District 84 (2.7%).

44,201residents (2020 Census)
13.2 sq miland area
2cities and towns
2congressional districts
32voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Naperville86%
Woodridge0.2%

CountyShare of ZIP residents
DuPage County100%

Town or county subdivisionShare of ZIP residents
Lisle township52%
Naperville township48%

Congressional districts

Congressional districtShare of ZIP residents
Illinois's 11th congressional district (IL-11)100%
Illinois's 6th congressional district (IL-06)0.1%

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
MayorScott A. Wehrli630-420-601886%
U.S. Representative (IL-11)Bill Foster (D)202-225-3515100%
U.S. Representative (IL-06)Sean Casten (D)202-225-45610.1%
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 21)Laura Ellman (Democratic)630-601-996180%
State Senator (State Senate District 41)John Curran (R)630-297-805817%
State Senator (State Senate District 42)Linda Holmes (Democratic)630-820-86502.7%
State Representative (State House District 41)Janet Yang Rohr (Democratic)630-296-415776%
State Representative (State House District 81)Anne Stava (Democratic)630-605-059517%
State Representative (State House District 42)Margaret DeLaRosa (Democratic)217-782-80374.5%
State Representative (State House District 84)Stephanie Kifowit (Democratic)630-585-13082.7%

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 ZIP residents
State Senate District 2180%
State Senate District 4117%
State Senate District 422.7%

State house districtShare of ZIP residents
State House District 4176%
State House District 8117%
State House District 424.5%
State House District 842.7%

Voting precincts

32 voting precincts overlap ZIP 60540. 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:60540")

ZIP 60540 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.