Boundary Atlas

ZIP code 57780: Scenic, SD

ZIP code 57780 is in Pennington County (74%) and Oglala Lakota County (26%), South Dakota, outside any city or Census-designated place. It is in South Dakota's at-large congressional district. Its state senate district is State Senate District 27; its state house district is State House District 27.

140residents (2020 Census)
424.6 sq miland area
0cities and towns
1congressional district
2voting precincts

See it on the mapAll of South Dakota

City and county

Outside any city or Census-designated place.


CountyShare of ZIP residents
Pennington County74%
Oglala Lakota County26%

Town or county subdivisionShare of ZIP residents
Scenic township49%
East Oglala Lakota UT26%
East Central Pennington UT11%
Imlay township9.3%
Conata township4.3%

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 27100%

State house districtShare of ZIP residents
State House District 27100%

Voting precincts

2 voting precincts overlap ZIP 57780. 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:57780")

ZIP 57780 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.