Zip Code 57028 — Flandreau, SD

ZIP Code 57028 is associated with Flandreau, SD, in Moody County. The listed population estimate is 3,450; estimated density is 6.6 people per square mile. Among records with population estimates, it ranks #1 of 4 in Moody County and #44 of 372 in SD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (44.057660, -96.604430)

Data MetricLocal Statistic
Postal / Zip Code57028
Primary CityFlandreau
State / ProvinceSD
CountyMoody
Total Population3,450
Population Density6.6 people/sq mi
TimezoneAmerica/Chicago

How 57028 Compares

MetricZIP 57028Moody County recordsSD records
Population estimate3,4505,941 (sum)906,188 (sum)
Population Density6.6 /sq mi----
County population rank#1 of 4----
State population rank#44 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 57024Egan6.3 mi480
ZIP 57065Trent10.9 mi383
ZIP 57017Colman11.4 mi1,628
ZIP 57026Elkton14.2 mi1,531
ZIP 57022Dell Rapids15.7 mi5,339

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 →