Boundary Atlas

ZIP code 57461: Mellette, SD

ZIP code 57461 is in Mellette (60% of residents), in Spink County (98%) and Brown County (2.4%), South Dakota. 40% 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 22 (98%) and State Senate District 1 (2.4%); its state house districts are State House District 22 (98%) and State House District 1 (2.4%).

333residents (2020 Census)
109.4 sq miland area
1cities and towns
1congressional district
2voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Mellette60%

CountyShare of ZIP residents
Spink County98%
Brown County2.4%

Town or county subdivisionShare of ZIP residents
Mellette city60%
Mellette township27%
Tetonka township9.0%
West Rondell township2.4%
La Prairie township1.8%

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 2298%
State Senate District 12.4%

State house districtShare of ZIP residents
State House District 2298%
State House District 12.4%

Voting precincts

2 voting precincts overlap ZIP 57461. 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:57461")

ZIP 57461 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.