Boundary Atlas

ZIP code 57225: Clark, SD

ZIP code 57225 is in Clark (66% of residents), in Clark County, South Dakota. 34% 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 (95%) and State Senate District 22 (5.1%); its state house districts are State House District 4 (95%) and State House District 22 (5.1%).

1,736residents (2020 Census)
288.5 sq miland area
2cities and towns
1congressional district
6voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Clark66%
Silver Lake Colony0.4%

CountyShare of ZIP residents
Clark County100%

Town or county subdivisionShare of ZIP residents
Clark city66%
Mount Pleasant township8.1%
Day township5.4%
Lincoln township4.5%
Elrod township3.7%
Woodland township2.8%
Darlington township2.5%
Garfield township1.9%
Eden township1.8%
Merton township1.8%
Thorp township0.9%
Raymond township0.5%

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)95%
State Senator (State Senate District 22)Brandon Wipf (R)5.1%
State Representative (State House District 4)Dylan Jordan (R)95%
State Representative (State House District 4)Kent Roe (R)95%
State Representative (State House District 22)Kevin Van Diepen (R)5.1%
State Representative (State House District 22)Lana Greenfield (R)5.1%

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 495%
State Senate District 225.1%

State house districtShare of ZIP residents
State House District 495%
State House District 225.1%

Voting precincts

6 voting precincts overlap ZIP 57225. 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 57225 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.