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Zip Code 57787 — Union Center, SD

57787 is a ZIP Code associated with Union Center, SD, located within Meade. The postal region supports an estimated population of 487 residents across Data Pending housing units, with a population density of 0.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (44.664300, -102.660970)

Data MetricLocal Statistic
Postal / Zip Code57787
Primary CityUnion Center
State / ProvinceSD
CountyMeade
Total Population487
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density0.3 people/sq mi
TimezoneAmerica/Denver

How 57787 Compares

MetricZIP 57787Meade CountySD State Average
Population48740,582906,188
Median IncomeData PendingN/AN/A
Population Density0.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 57737Enning10.2 mi77N/A
Zip 57792White Owl15.4 mi114N/A
Zip 57758Mud Butte22.8 mi35N/A
Zip 57788Vale27.5 mi598N/A
Zip 57791Wasta30.6 mi97N/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 →