Boundary Atlas

ZIP code 57048: Montrose, SD

ZIP code 57048 is in Montrose (46% of residents), in McCook County (93%) and Minnehaha County (7.1%), South Dakota. 54% of its residents live outside city limits. It is in South Dakota's at-large congressional district. Its state senate districts are State Senate District 19 (93%) and State Senate District 25 (7.1%); its state house districts are State House District 19 (93%) and State House District 25 (7.1%).

1,025residents (2020 Census)
130.2 sq miland area
2cities and towns
1congressional district
4voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Montrose46%
Orland Colony0.2%

CountyShare of ZIP residents
McCook County93%
Minnehaha County7.1%

Town or county subdivisionShare of ZIP residents
Montrose city46%
Montrose township18%
Ramsey township9.5%
Greenland township8.6%
Brookfield township7.0%
Clear Lake township4.7%
Richland township3.8%
Humboldt township2.1%
Buffalo township0.4%

Congressional district

Congressional districtShare of ZIP residents
South Dakota's at-large congressional district (SD-AL)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (SD-AL)Dusty Johnson (R)202-225-2801100%
U.S. SenatorJohn Thune (R)202-224-2321 · contact formstatewide
U.S. SenatorMike Rounds (R)202-224-5842 · contact formstatewide
State Senator (State Senate District 19)Kyle Schoenfish (R)93%
State Senator (State Senate District 25)Tom Pischke (R)7.1%
State Representative (State House District 19)Drew Peterson (R)93%
State Representative (State House District 19)Jessica Bahmuller (R)93%
State Representative (State House District 25)Jon Hansen (R)7.1%
State Representative (State House District 25)Les Heinemann (R)7.1%

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 1993%
State Senate District 257.1%

State house districtShare of ZIP residents
State House District 1993%
State House District 257.1%

Voting precincts

4 voting precincts overlap ZIP 57048. 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:

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ZIP 57048 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.