Boundary Atlas

ZIP code 61285: Thomson, IL

ZIP code 61285 is in Thomson (60% of residents), in Carroll County, Illinois. 40% of its residents live outside city limits. It is in Illinois's 17th congressional district. Its state senate district is State Senate District 45; its state house district is State House District 89.

2,681residents (2020 Census)
44.4 sq miland area
1cities and towns
1congressional district
2voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Thomson60%

CountyShare of ZIP residents
Carroll County100%

Town or county subdivisionShare of ZIP residents
York township99%
Savanna township1.3%

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 45)Andrew Chesney (R)815-232-0774100%
State Representative (State House District 89)Tony McCombie (R)815-291-8989100%

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 45100%

State house districtShare of ZIP residents
State House District 89100%

Voting precincts

2 voting precincts overlap ZIP 61285. Map them, with each precinct's share of the ZIP's residents.

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ZIP 61285 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.