ZIP Code
ZIP Code 48721
Black River, Alcona County, Michigan MI
Population
406
Density
5.6/sq mi
Timezone
America/Detroit
Safety Score
50
50
Average
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Overview
ZIP code 48721 is located in Black River, Alcona County, Michigan. The area has a population of approximately 406 residents with a population density of 5.6 per square mile. It is in the America/Detroit timezone.