ZIP Code 57782
About Smithwick
Smithwick is an unincorporated community and census-designated place (CDP) in Fall River County, South Dakota, United States. The population was 39 at the 2020 census. Smithwick has been assigned the ZIP code of 57782.
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Area Profile
US Census (ACS 5-year · Gazetteer)
51
population
$56,667
median household income
1
people / sq mi
$259,400
median home value
42.8
median age
20
housing units
20
households
51.0
land area (sq mi)