ZIP Code 57278

Zip Code: 57278
Type: Standard
Official USPS city name: Willow Lake
Official USPS State Code: SD
Official State Name: South Dakota
ZCTA: TRUE
Population: 734.0
Density: 1.6
Primary Official County Code: 46025
Primary Official County Name: Clark
Official County Name: Clark
Official County Code: 46025
Imprecise: FALSE
Military: FALSE
Timezone: America/Chicago (02:18 AM Friday, September 25 2026-09-25 (GMT -0500))
Geo Point: 44.63908, -97.69546

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