Boundary Atlas

White River, South Dakota

White River is a city in Mellette County, South Dakota, with 533 residents in 2020. It is in South Dakota's at-large congressional district. Its state senate district is State Senate District 26; its state house district is State House District 26A.

533residents (2020 Census)
0.5 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Mellette County100%

Congressional district

Congressional districtShare of 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 26)Tamara Grove (R)100%
State Representative (State House District 26A)Eric Emery (Democratic)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 residents
State Senate District 26100%

State house districtShare of residents
State House District 26A100%

ZIP codes

Percentages mark ZIPs only partly in White River: the share of that ZIP's residents living in it.

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Your agent can get White River's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

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White River here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.