Boundary Atlas

ZIP code 60548: Sandwich, IL

ZIP code 60548 is in Sandwich (60% of residents) and Lake Holiday (30%), in DeKalb County (64%), LaSalle County (34%) and Kendall County (2.6%), Illinois. 9.7% of its residents live outside city limits. It is in Illinois's 14th congressional district. Its state senate districts are State Senate District 38 (99%) and State Senate District 35 (1.2%); its state house districts are State House District 75 (99%) and State House District 70 (1.2%).

12,019residents (2020 Census)
41.4 sq miland area
2cities and towns
1congressional district
14voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Sandwich60%
Lake Holiday30%

CountyShare of ZIP residents
DeKalb County64%
LaSalle County34%
Kendall County2.6%

Town or county subdivisionShare of ZIP residents
Sandwich township62%
Northville township34%
Little Rock township2.6%
Somonauk township1.4%
Fox township<0.1%

Congressional district

Congressional districtShare of ZIP residents
Illinois's 14th congressional district (IL-14)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-14)Lauren Underwood (D)202-225-2976100%
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 38)Sue Rezin (R)815-220-872099%
State Senator (State Senate District 35)Dave Syverson (R)815-987-75551.2%
State Representative (State House District 75)Jed Davis (R)331-867-820099%
State Representative (State House District 70)Jeff Keicher (R)815-748-34941.2%

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 3899%
State Senate District 351.2%

State house districtShare of ZIP residents
State House District 7599%
State House District 701.2%

Voting precincts

14 voting precincts overlap ZIP 60548. Map them, with each precinct's share of the ZIP's residents.

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ZIP 60548 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.