Boundary Atlas

ZIP code 57234: Estelline, SD

ZIP code 57234 is in Estelline (60% of residents) and Lake Poinsett (11%), in Hamlin County (83%), Deuel County (14%) and Brookings County (3.1%), South Dakota. 29% 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 4 (97%) and State Senate District 8 (3.1%); its state house districts are State House District 4 (97%) and State House District 8 (3.1%).

1,256residents (2020 Census)
102.3 sq miland area
2cities and towns
1congressional district
7voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Estelline60%
Lake Poinsett11%

CountyShare of ZIP residents
Hamlin County83%
Deuel County14%
Brookings County3.1%

Town or county subdivisionShare of ZIP residents
Estelline city60%
Estelline township21%
Grange township8.4%
Hidewood township4.7%
Dempster township2.6%
Eureka township2.0%
Laketon township1.0%
Brandt township0.5%
Preston township0.2%

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 4)Stephanie Sauder (R)97%
State Senator (State Senate District 8)Casey Crabtree (R)3.1%
State Representative (State House District 4)Dylan Jordan (R)97%
State Representative (State House District 4)Kent Roe (R)97%
State Representative (State House District 8)Tim Reisch (R)3.1%
State Representative (State House District 8)Tim Walburg (R)3.1%

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 497%
State Senate District 83.1%

State house districtShare of ZIP residents
State House District 497%
State House District 83.1%

Voting precincts

7 voting precincts overlap ZIP 57234. 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 57234 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.