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Zip Code 57473 — Seneca, SD

57473 is a ZIP Code associated with Seneca, SD, located within Faulk. The postal region supports an estimated population of 246 residents across Data Pending housing units, with a population density of 0.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (44.989930, -99.483000)

Data MetricLocal Statistic
Postal / Zip Code57473
Primary CitySeneca
State / ProvinceSD
CountyFaulk
Total Population246
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density0.5 people/sq mi
TimezoneAmerica/Chicago

How 57473 Compares

MetricZIP 57473Faulk CountySD State Average
Population2461,711906,188
Median IncomeData PendingN/AN/A
Population Density0.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 57455Lebanon12.6 mi137N/A
Zip 57466Onaka14.6 mi192N/A
Zip 57438Faulkton16.9 mi973N/A
Zip 57475Tolstoy17.8 mi99N/A
Zip 57467Orient20.1 mi410N/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 →