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Zip Code 57312 — Alpena, SD

57312 is a ZIP Code associated with Alpena, SD, located within Beadle. The postal region supports an estimated population of 596 residents across Data Pending housing units, with a population density of 1.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (44.196460, -98.385640)

Data MetricLocal Statistic
Postal / Zip Code57312
Primary CityAlpena
State / ProvinceSD
CountyBeadle
Total Population596
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1.8 people/sq mi
TimezoneAmerica/Chicago

How 57312 Compares

MetricZIP 57312Beadle CountySD State Average
Population59619,796906,188
Median IncomeData PendingN/AN/A
Population Density1.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 57358Lane8.6 mi15N/A
Zip 57379Virgil8.9 mi120N/A
Zip 57385Woonsocket11.4 mi1,408N/A
Zip 57384Wolsey16.2 mi1,077N/A
Zip 57350Huron16.5 mi16,199N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →