Home > SD > Kingsbury County > De Smet > Zip 57231

Zip Code 57231 — De Smet, SD

ZIP Code 57231 is associated with De Smet, SD, in Kingsbury County. The listed population estimate is 1,724; estimated density is 2.7 people per square mile. Among records with population estimates, it ranks #2 of 7 in Kingsbury County and #82 of 372 in SD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (44.374900, -97.582430)

Data MetricLocal Statistic
Postal / Zip Code57231
Primary CityDe Smet
State / ProvinceSD
CountyKingsbury
Total Population1,724
Population Density2.7 people/sq mi
TimezoneAmerica/Chicago

How 57231 Compares

MetricZIP 57231Kingsbury County recordsSD records
Population estimate1,7246,053 (sum)906,188 (sum)
Population Density2.7 /sq mi----
County population rank#2 of 7----
State population rank#82 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 57249Lake Preston10.8 mi1,023
ZIP 57353Iroquois12.4 mi812
ZIP 57233Erwin13.0 mi350
ZIP 57051Oldham15.8 mi163
ZIP 57323Carthage16.2 mi126

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 →