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Zip Code 57330 — Delmont, SD

57330 is a ZIP Code associated with Delmont, SD, located within Douglas. The postal region supports an estimated population of 594 residents across Data Pending housing units, with a population density of 2.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.261470, -98.160820)

Data MetricLocal Statistic
Postal / Zip Code57330
Primary CityDelmont
State / ProvinceSD
CountyDouglas
Total Population594
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density2.0 people/sq mi
TimezoneAmerica/Chicago

How 57330 Compares

MetricZIP 57330Douglas CountySD State Average
Population5943,147906,188
Median IncomeData PendingN/AN/A
Population Density2.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 57313Armour10.7 mi1,220N/A
Zip 57376Tripp11.4 mi944N/A
Zip 57366Parkston13.9 mi2,598N/A
Zip 57331Dimock15.7 mi231N/A
Zip 57354Kaylor16.8 mi86N/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 →