Boundary Atlas

ZIP code 56048: Janesville, MN

ZIP code 56048 is in Janesville (58% of residents), in Waseca County (89%) and Blue Earth County (11%), Minnesota. 42% of its residents live outside city limits. It is in Minnesota's 1st congressional district. Its state senate districts are State Senate District 19 (86%), State Senate District 22 (11%) and State Senate District 23 (2.8%); its state house districts are State House District 19A (85%), State House District 22B (10%), State House District 23A (2.8%), State House District 19B (1.1%) and State House District 22A (0.7%).

4,150residents (2020 Census)
122.4 sq miland area
2cities and towns
1congressional district
10voting precincts

See it on the mapAll of Minnesota

City and county

City or townShare of ZIP residents
Janesville58%
St. Clair0.1%

CountyShare of ZIP residents
Waseca County89%
Blue Earth County11%

Town or county subdivisionShare of ZIP residents
Janesville city58%
Janesville township12%
Alton township8.5%
McPherson township7.4%
Iosco township6.5%
Freedom township2.8%
Le Ray township2.6%
St. Mary township1.1%
Medo township0.7%
St. Clair city0.1%

Congressional district

Congressional districtShare of ZIP residents
Minnesota's 1st congressional district (MN-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MN-01)Brad Finstad (R)202-225-2472100%
U.S. SenatorAmy Klobuchar (D)202-224-3244 · contact formstatewide
U.S. SenatorTina Smith (D)202-224-5641 · contact formstatewide
State Senator (State Senate District 19)John Jasinski (R)86%
State Senator (State Senate District 22)Rich Draheim (R)11%
State Senator (State Senate District 23)Gene Dornink (R)2.8%
State Representative (State House District 19A)Keith Allen (R)85%
State Representative (State House District 22B)Terry Stier (R)952-292-063810%
State Representative (State House District 23A)Peggy Bennett (R)2.8%
State Representative (State House District 19B)Tom Sexton (R)1.1%
State Representative (State House District 22A)Bjorn Olson (R)0.7%

Elected under MN's previous legislative map; the district's lines changed for 2026.

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 1986%
State Senate District 2211%
State Senate District 232.8%

State house districtShare of ZIP residents
State House District 19A85%
State House District 22B10%
State House District 23A2.8%
State House District 19B1.1%
State House District 22A0.7%

Voting precincts

10 voting precincts overlap ZIP 56048. Map them, with each precinct's share of the ZIP's residents.

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ZIP 56048 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.