Boundary Atlas

ZIP code 61257: Hillsdale, IL

ZIP code 61257 is in Hillsdale (38% of residents) and Joslin (7.8%), in Rock Island County, Illinois. 54% of its residents live outside city limits. It is in Illinois's 17th congressional district. Its state senate district is State Senate District 37; its state house district is State House District 73.

1,097residents (2020 Census)
41.3 sq miland area
3cities and towns
1congressional district
3voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Hillsdale38%
Joslin7.8%
East Moline0.8%

CountyShare of ZIP residents
Rock Island County100%

Town or county subdivisionShare of ZIP residents
Canoe Creek township58%
Zuma township26%
Coe township16%

Congressional district

Congressional districtShare of ZIP residents
Illinois's 17th congressional district (IL-17)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-17)Eric Sorensen (D)202-225-5905100%
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 37)Li Arellano (R)779-251-5003100%
State Representative (State House District 73)Ryan Spain (R)309-690-7373100%

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 37100%

State house districtShare of ZIP residents
State House District 73100%

Voting precincts

3 voting precincts overlap ZIP 61257. Map them, with each precinct's share of the ZIP's residents.

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ZIP 61257 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.