Boundary Atlas

ZIP code 57501: Pierre, SD

ZIP code 57501 is in Pierre (82% of residents) and Oahe Acres (2.9%), in Hughes County (98%) and Sully County (1.6%), South Dakota. 15% of its residents live outside city limits. It is in South Dakota's at-large congressional district. Its state senate district is State Senate District 24; its state house district is State House District 24.

17,083residents (2020 Census)
564.1 sq miland area
3cities and towns
1congressional district
16voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Pierre82%
Oahe Acres2.9%
Cow Creek0.3%

CountyShare of ZIP residents
Hughes County98%
Sully County1.6%

Town or county subdivisionShare of ZIP residents
Pierre city82%
West Hughes UT16%
West Sully UT1.6%
Raber township<0.1%
North Hughes UT<0.1%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (SD-AL)Dusty Johnson (R)202-225-2801100%
U.S. SenatorJohn Thune (R)202-224-2321 · contact formstatewide
U.S. SenatorMike Rounds (R)202-224-5842 · contact formstatewide
State Senator (State Senate District 24)Jim Mehlhaff (R)100%
State Representative (State House District 24)Mike Weisgram (R)100%
State Representative (State House District 24)Will Mortenson (R)100%

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 24100%

State house districtShare of ZIP residents
State House District 24100%

Voting precincts

16 voting precincts overlap ZIP 57501. Map them, with each precinct's share of the ZIP's residents.

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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:

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ZIP 57501 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.