Boundary Atlas

ZIP code 57791: Wasta, SD

ZIP code 57791 is in Wasta (30% of residents), in Pennington County (60%) and Meade County (40%), South Dakota. 70% 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 27 (60%) and State Senate District 29 (40%); its state house districts are State House District 27 (60%) and State House District 29 (40%).

217residents (2020 Census)
288.6 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Wasta30%

CountyShare of ZIP residents
Pennington County60%
Meade County40%

Town or county subdivisionShare of ZIP residents
Wasta town30%
Belle Fourche-Cheyenne Valleys UT18%
East Central Pennington UT12%
Smithville township12%
Shyne township12%
Elm Springs township11%
Wasta township6.5%
Owanka township0.5%
Lakeside townshipland only
Crooked Creek townshipland only

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2760%
State Senate District 2940%

State house districtShare of ZIP residents
State House District 2760%
State House District 2940%

Voting precincts

4 voting precincts overlap ZIP 57791. 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:57791")

ZIP 57791 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.