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Zip Code 57341 — Gann Valley, SD

57341 is a ZIP Code associated with Gann Valley, SD, located within Buffalo. The postal region supports an estimated population of 79 residents across Data Pending housing units, with a population density of 0.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (44.080770, -99.089740)

Data MetricLocal Statistic
Postal / Zip Code57341
Primary CityGann Valley
State / ProvinceSD
CountyBuffalo
Total Population79
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density0.1 people/sq mi
TimezoneAmerica/Chicago

How 57341 Compares

MetricZIP 57341Buffalo CountySD State Average
Population791,469906,188
Median IncomeData PendingN/AN/A
Population Density0.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 57339Fort Thompson19.4 mi1,390N/A
Zip 57370Pukwana19.5 mi894N/A
Zip 57325Chamberlain20.0 mi3,335N/A
Zip 57382Wessington Springs20.8 mi1,180N/A
Zip 57346Stephan21.6 mi13N/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 →