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U.S. ZIP Code 57646
5-digit United States postal code #57646, Mound City, SD
ZIP code 57646 is located in the city (place name) Mound City, сounty Campbell in the state of South Dakota. The population in ZIP code 57646 is 199 and the population density is 0.6. ZIP code 57646 refers to сounty Campbell having сounty FIPS 46021, the ratio of people from different counties in this ZIP code is as follows: all county weights - 46021: 100%. In the area of the ZIP code 57646 valid time zone America/Chicago.
ZIP: 57646
County: Campbell
Place Name: Mound City
State: South Dakota
State Abbreviation: SD
Coordinates: 45° 41' 24.504" N, 100° 5' 1.644" W
Latitude: 45.690140000000
Longitude: -100.083790000000
Population: 199
Density: 0.6/km2
Time zone: America/Chicago
County FIPS: 46021
All county weights: 46021: 100%