ZIP Code
ZIP Code 57646
Mound City, Campbell County, South Dakota SD
Population
272
Density
0.8/sq mi
Timezone
America/Chicago
Safety Score
50
50
Average
Loading map…
Overview
ZIP code 57646 is located in Mound City, Campbell County, South Dakota. The area has a population of approximately 272 residents with a population density of 0.8 per square mile. It is in the America/Chicago timezone.