ZIP Code 57233
About Erwin
Erwin is a town in Kingsbury County, South Dakota, United States. As of the 2020 census, Erwin had a population of 40.
From Wikipedia — text licensed CC BY-SA 4.0.
Area Profile
US Census (ACS 5-year · Gazetteer)
240
population
$89,375
median household income
7
people / sq mi
$280,000
median home value
19.7
median age
66
housing units
49
households
36.7
land area (sq mi)