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U.S. ZIP Code 57440
5-digit United States postal code #57440, Frankfort, SD
ZIP code 57440 is located in the city (place name) Frankfort, сounty Spink in the state of South Dakota. The population in ZIP code 57440 is 612 and the population density is 1.7. ZIP code 57440 refers to сounty Spink having сounty FIPS 46115, the ratio of people from different counties in this ZIP code is as follows: all county weights - 46115: 100%. In the area of the ZIP code 57440 valid time zone America/Chicago.
ZIP: 57440
County: Spink
Place Name: Frankfort
State: South Dakota
State Abbreviation: SD
Coordinates: 44° 50' 59.928" N, 98° 15' 42.804" W
Latitude: 44.849980000000
Longitude: -98.261890000000
Population: 612
Density: 1.7/km2
Time zone: America/Chicago
County FIPS: 46115
All county weights: 46115: 100%