Boundary Atlas

ZIP code 57313: Armour, SD

ZIP code 57313 is in Armour (60% of residents), in Douglas County (90%) and Charles Mix County (10%), South Dakota. 40% 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 21; its state house district is State House District 21.

1,165residents (2020 Census)
181.4 sq miland area
1cities and towns
1congressional district
7voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Armour60%

CountyShare of ZIP residents
Douglas County90%
Charles Mix County10%

Town or county subdivisionShare of ZIP residents
Armour city60%
Valley township11%
Independence township7.9%
Chester township6.8%
Kennedy township4.4%
Howard township4.3%
Grandview township1.9%
Lincoln township1.6%
Moore township1.5%
Iowa township1.1%

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 21)MyKala Voita (R)100%
State Representative (State House District 21)Jim Halverson (R)100%
State Representative (State House District 21)Marty Overweg (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 21100%

State house districtShare of ZIP residents
State House District 21100%

Voting precincts

7 voting precincts overlap ZIP 57313. Map them, with each precinct's share of the ZIP's residents.

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ZIP 57313 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.