Boundary Atlas

ZIP code 57369: Platte, SD

ZIP code 57369 is in Platte (48% of residents) and Platte Colony (11%), in Charles Mix County (88%), Brule County (10%), Douglas County (1.1%) and Aurora County (<0.1%), South Dakota. 41% 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 21 (90%) and State Senate District 26 (10%); its state house districts are State House District 21 (90%) and State House District 26B (10%).

2,685residents (2020 Census)
452.4 sq miland area
3cities and towns
1congressional district
9voting precincts

See it on the mapAll of South Dakota

City and county

City or townShare of ZIP residents
Platte48%
Platte Colony11%
Bijou Hills<0.1%

CountyShare of ZIP residents
Charles Mix County88%
Brule County10%
Douglas County1.1%
Aurora Countyland only

Town or county subdivisionShare of ZIP residents
Platte city48%
La Roche township13%
Platte township11%
Torrey Lake township7.3%
Darlington township4.3%
Forbes township2.4%
Hamilton township2.4%
Castalia UT2.2%
Signal township2.2%
Eagle township2.0%
Carroll UT2.0%
Pleasant Grove township1.1%
Lake George township0.9%
Clark township0.7%
Joubert township0.4%
Rhoda township0.3%
Washington townshipland only
America townshipland 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 21)MyKala Voita (R)90%
State Senator (State Senate District 26)Tamara Grove (R)10%
State Representative (State House District 21)Jim Halverson (R)90%
State Representative (State House District 21)Marty Overweg (R)90%
State Representative (State House District 26B)Rebecca Reimer (R)10%

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 2190%
State Senate District 2610%

State house districtShare of ZIP residents
State House District 2190%
State House District 26B10%

Voting precincts

9 voting precincts overlap ZIP 57369. Map them, with each precinct's share of the ZIP's residents.

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ZIP 57369 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.