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U.S. ZIP Code 57312
5-digit United States postal code #57312, Alpena, SD
ZIP code 57312 is located in the city (place name) Alpena, сounty Jerauld in the state of South Dakota. The population in ZIP code 57312 is 516 and the population density is 1.9. ZIP code 57312 refers to сounty Jerauld having сounty FIPS 46073, the ratio of people from different counties in this ZIP code is as follows: all county weights - 46005: 29.84%, 46073: 70.16%. In the area of the ZIP code 57312 valid time zone America/Chicago.
ZIP: 57312
County: Jerauld
Place Name: Alpena
State: South Dakota
State Abbreviation: SD
Coordinates: 44° 12' 1.62" N, 98° 22' 34.824" W
Latitude: 44.200450000000
Longitude: -98.376340000000
Population: 516
Density: 1.9/km2
Time zone: America/Chicago
County FIPS: 46073
All county weights: 46005: 29.84%, 46073: 70.16%