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Zip Code 57473 — Seneca, SD

ZIP Code 57473 is associated with Seneca, SD, in Faulk County. The listed population estimate is 246; estimated density is 0.5 people per square mile. Among records with population estimates, it ranks #3 of 4 in Faulk County and #281 of 372 in SD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (44.989930, -99.483000)

Data MetricLocal Statistic
Postal / Zip Code57473
Primary CitySeneca
State / ProvinceSD
CountyFaulk
Total Population246
Population Density0.5 people/sq mi
TimezoneAmerica/Chicago

How 57473 Compares

MetricZIP 57473Faulk County recordsSD records
Population estimate2461,711 (sum)906,188 (sum)
Population Density0.5 /sq mi----
County population rank#3 of 4----
State population rank#281 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 57455Lebanon12.6 mi137
ZIP 57466Onaka14.6 mi192
ZIP 57438Faulkton16.9 mi973
ZIP 57475Tolstoy17.8 mi99
ZIP 57467Orient20.1 mi410

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 →