Boundary Atlas

ZIP code 57724: Camp Crook, SD

ZIP code 57724 is in Camp Crook (36% of residents), in Harding County (87%) and Carter County (13%), South Dakota. 64% of its residents live outside city limits. It is in South Dakota's at-large congressional district (87%) and Montana's 2nd congressional district (13%). Its state senate districts are State Senate District 28 (87%) and State Senate District 17 (13%); its state house districts are State House District 28B (87%) and State House District 34 (13%).

166residents (2020 Census)
361.6 sq miland area
1cities and towns
2congressional districts
3voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Camp Crook36%

CountyShare of ZIP residents
Harding County87%
Carter County13%

Town or county subdivisionShare of ZIP residents
North Harding UT42%
Camp Crook town36%
Ekalaka CCD9.6%
South Harding UT9.0%
Alzada-Boyes CCD3.0%

Congressional districts

Congressional districtShare of ZIP residents
South Dakota's at-large congressional district (SD-AL)87%
Montana's 2nd congressional district (MT-02)13%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2887%
State Senate District 1713%

State house districtShare of ZIP residents
State House District 28B87%
State House District 3413%

Voting precincts

3 voting precincts overlap ZIP 57724. It also crosses into MT. 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:57724")

ZIP 57724 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.