Boundary Atlas

ZIP code 57785: Sturgis, SD

ZIP code 57785 is in Sturgis (72% of residents), Boulder Canyon (5.7%) and Blucksberg Mountain (4.7%), in Meade County (90%) and Lawrence County (9.9%), South Dakota. 18% 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 29 (90%) and State Senate District 31 (9.9%); its state house districts are State House District 29 (90%) and State House District 31 (9.9%).

9,895residents (2020 Census)
570.2 sq miland area
3cities and towns
1congressional district
19voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Sturgis72%
Boulder Canyon5.7%
Blucksberg Mountain4.7%

CountyShare of ZIP residents
Meade County90%
Lawrence County9.9%

Town or county subdivisionShare of ZIP residents
Sturgis city72%
Southwest Meade UT16%
South Lawrence UT5.0%
North Lawrence UT4.9%
Belle Fourche-Cheyenne Valleys UT2.6%

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 2990%
State Senate District 319.9%

State house districtShare of ZIP residents
State House District 2990%
State House District 319.9%

Voting precincts

19 voting precincts overlap ZIP 57785. 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:57785")

ZIP 57785 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.