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Zip Code 57551 — Martin, SD

57551 is a ZIP Code associated with Martin, SD, located within Bennett. The postal region supports an estimated population of 2,084 residents across Data Pending housing units, with a population density of 1.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.180870, -101.700120)

Data MetricLocal Statistic
Postal / Zip Code57551
Primary CityMartin
State / ProvinceSD
CountyBennett
Total Population2,084
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1.1 people/sq mi
TimezoneAmerica/Denver

How 57551 Compares

MetricZIP 57551Bennett CountySD State Average
Population2,0843,301906,188
Median IncomeData PendingN/AN/A
Population Density1.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 57714Allen14.9 mi1,144N/A
Zip 57574Tuthill17.7 mi73N/A
Zip 57577Wanblee23.8 mi940N/A
Zip 57547Long Valley24.6 mi383N/A
Zip 57716Batesland27.1 mi201N/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 →