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Zip Code 57330 — Delmont, SD

ZIP Code 57330 is associated with Delmont, SD, in Douglas County. The listed population estimate is 594; estimated density is 2.0 people per square mile. Among records with population estimates, it ranks #3 of 5 in Douglas County and #190 of 372 in SD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (43.261470, -98.160820)

Data MetricLocal Statistic
Postal / Zip Code57330
Primary CityDelmont
State / ProvinceSD
CountyDouglas
Total Population594
Population Density2.0 people/sq mi
TimezoneAmerica/Chicago

How 57330 Compares

MetricZIP 57330Douglas County recordsSD records
Population estimate5943,147 (sum)906,188 (sum)
Population Density2.0 /sq mi----
County population rank#3 of 5----
State population rank#190 of 372----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in SD

ZIP CodeCityDistancePopulation estimate
ZIP 57313Armour10.7 mi1,220
ZIP 57376Tripp11.4 mi944
ZIP 57366Parkston13.9 mi2,598
ZIP 57331Dimock15.7 mi231
ZIP 57354Kaylor16.8 mi86

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 →