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U.S. ZIP Code 57278
5-digit United States postal code #57278, Willow Lake, SD
ZIP code 57278 is located in the city (place name) Willow Lake, сounty Clark in the state of South Dakota. The population in ZIP code 57278 is 748 and the population density is 1.6. ZIP code 57278 refers to сounty Clark having сounty FIPS 46025, the ratio of people from different counties in this ZIP code is as follows: all county weights - 46025: 100%. In the area of the ZIP code 57278 valid time zone America/Chicago.
ZIP: 57278
County: Clark
Place Name: Willow Lake
State: South Dakota
State Abbreviation: SD
Coordinates: 44° 38' 20.688" N, 97° 41' 43.656" W
Latitude: 44.639080000000
Longitude: -97.695460000000
Population: 748
Density: 1.6/km2
Time zone: America/Chicago
County FIPS: 46025
All county weights: 46025: 100%