Boundary Atlas

ZIP code 61373: North Utica, IL

ZIP code 61373 is in North Utica (67% of residents) and LaSalle (2.8%), in LaSalle County, Illinois. 30% of its residents live outside city limits. It is in Illinois's 14th congressional district. Its state senate districts are State Senate District 38 (76%) and State Senate District 37 (24%); its state house districts are State House District 76 (76%) and State House District 74 (24%).

1,976residents (2020 Census)
47.0 sq miland area
2cities and towns
1congressional district
5voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
North Utica67%
LaSalle2.8%

CountyShare of ZIP residents
LaSalle County100%

Town or county subdivisionShare of ZIP residents
Utica township76%
Waltham township20%
Ophir township2.0%
Troy Grove township1.8%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 3876%
State Senate District 3724%

State house districtShare of ZIP residents
State House District 7676%
State House District 7424%

Voting precincts

5 voting precincts overlap ZIP 61373. 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:61373")

ZIP 61373 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.