Home > SD > Corson County > Morristown > Zip 57645

Zip Code 57645 — Morristown, SD

57645 is a ZIP Code associated with Morristown, SD, located within Corson. The postal region supports an estimated population of 184 residents across Data Pending housing units, with a population density of 0.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (45.911900, -101.718550)

Data MetricLocal Statistic
Postal / Zip Code57645
Primary CityMorristown
State / ProvinceSD
CountyCorson
Total Population184
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density0.2 people/sq mi
TimezoneAmerica/Denver

How 57645 Compares

MetricZIP 57645Corson CountySD State Average
Population1844,221906,188
Median IncomeData PendingN/AN/A
Population Density0.2 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 57660Watauga10.5 mi111N/A
Zip 57634Keldron13.5 mi131N/A
Zip 57641McIntosh19.9 mi215N/A
Zip 57638Lemmon23.7 mi1,852N/A
Zip 57659Walker29.9 mi16N/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 →