Boundary Atlas

ZIP code 61047: Leaf River, IL

ZIP code 61047 is in Leaf River (26% of residents) and Adeline (4.6%), in Ogle County (97%), Winnebago County (2.2%) and Stephenson County (1.1%), Illinois. 70% of its residents live outside city limits. It is in Illinois's 16th congressional district (97%) and Illinois's 17th congressional district (3.3%). Its state senate district is State Senate District 45; its state house district is State House District 89.

1,688residents (2020 Census)
66.4 sq miland area
2cities and towns
2congressional districts
7voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Leaf River26%
Adeline4.6%

CountyShare of ZIP residents
Ogle County97%
Winnebago County2.2%
Stephenson County1.1%

Town or county subdivisionShare of ZIP residents
Leaf River township64%
Byron township14%
Maryland township13%
Mount Morris township5.1%
Seward township2.2%
Ridott township1.1%
Rockvale township0.1%

Congressional districts

Congressional districtShare of ZIP residents
Illinois's 16th congressional district (IL-16)97%
Illinois's 17th congressional district (IL-17)3.3%

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
U.S. Representative (IL-16)Darin LaHood (R)202-225-620197%
U.S. Representative (IL-17)Eric Sorensen (D)202-225-59053.3%
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

7 voting precincts overlap ZIP 61047. Map them, with each precinct's share of the ZIP's residents.

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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:61047")

ZIP 61047 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.