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Zip Code 57368 — Plankinton, SD

57368 is a ZIP Code associated with Plankinton, SD, located within Aurora. The postal region supports an estimated population of 1,068 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 (43.751170, -98.475930)

Data MetricLocal Statistic
Postal / Zip Code57368
Primary CityPlankinton
State / ProvinceSD
CountyAurora
Total Population1,068
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1.8 people/sq mi
TimezoneAmerica/Chicago

How 57368 Compares

MetricZIP 57368Aurora CountySD State Average
Population1,0682,540906,188
Median IncomeData PendingN/AN/A
Population Density1.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 57363Mount Vernon11.9 mi866N/A
Zip 57383White Lake12.1 mi899N/A
Zip 57375Stickney13.1 mi573N/A
Zip 57359Letcher19.0 mi652N/A
Zip 57344Harrison21.6 mi39N/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 →