ZIP Code
ZIP Code 57650
Ralph, Harding County, South Dakota SD
Population
17
Density
0.1/sq mi
Timezone
America/Denver
Safety Score
50
50
Average
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Overview
ZIP code 57650 is located in Ralph, Harding County, South Dakota. The area has a population of approximately 17 residents with a population density of 0.1 per square mile. It is in the America/Denver timezone.