Boundary Atlas

ZIP code 57004: Beresford, SD

ZIP code 57004 is in Beresford (63% of residents), in Union County (64%), Lincoln County (28%) and Clay County (8.4%), South Dakota. 37% 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 16 (92%) and State Senate District 17 (8.4%); its state house districts are State House District 16 (92%) and State House District 17 (8.4%).

3,459residents (2020 Census)
194.7 sq miland area
1cities and towns
1congressional district
13voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Beresford63%

CountyShare of ZIP residents
Union County64%
Lincoln County28%
Clay County8.4%

Town or county subdivisionShare of ZIP residents
Beresford city52%
Beresford city11%
Pleasant township8.3%
Prairie township6.3%
Glenwood township5.6%
Emmet township4.1%
Lincoln township3.6%
Brooklyn township3.6%
Garfield township2.4%
Delaware township1.7%
Spink township0.8%
Prairie Center township0.4%
Norway township0.3%

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 16)Kevin Jensen (R)92%
State Senator (State Senate District 17)Sydney Davis (R)8.4%
State Representative (State House District 16)John Shubeck (R)92%
State Representative (State House District 16)Karla Lems (R)92%
State Representative (State House District 17)Chris Kassin (R)8.4%
State Representative (State House District 17)William Shorma (R)8.4%

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 1692%
State Senate District 178.4%

State house districtShare of ZIP residents
State House District 1692%
State House District 178.4%

Voting precincts

13 voting precincts overlap ZIP 57004. 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:

related_geographies(id="us:zcta:57004")

ZIP 57004 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.