Boundary Atlas

ZIP code 57312: Alpena, SD

ZIP code 57312 is in Alpena (44% of residents), in Jerauld County (65%), Beadle County (34%) and Sanborn County (1.4%), South Dakota. 56% 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 20 (66%) and State Senate District 22 (34%); its state house districts are State House District 20 (66%) and State House District 22 (34%).

485residents (2020 Census)
130.3 sq miland area
1cities and towns
1congressional district
5voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Alpena44%

CountyShare of ZIP residents
Jerauld County65%
Beadle County34%
Sanborn County1.4%

Town or county subdivisionShare of ZIP residents
Alpena town44%
Alpena township18%
Grant township16%
Carlyle township14%
Kellogg township3.9%
Franklin township2.5%
Warren township1.4%
Wessington Springs township0.4%
Dale UTland only

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 20)Paul Miskimins (R)66%
State Senator (State Senate District 22)Brandon Wipf (R)34%
State Representative (State House District 20)Jeff Bathke (R)66%
State Representative (State House District 20)Kaley Nolz (R)66%
State Representative (State House District 22)Kevin Van Diepen (R)34%
State Representative (State House District 22)Lana Greenfield (R)34%

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 2066%
State Senate District 2234%

State house districtShare of ZIP residents
State House District 2066%
State House District 2234%

Voting precincts

5 voting precincts overlap ZIP 57312. Map them, with each precinct's share of the ZIP's residents.

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ZIP 57312 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.