ZIP Code 57312
About Alpena
Alpena is a town in northeastern corner of Jerauld County, South Dakota, United States. As of the 2020 census, Alpena had a population of 212.
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Area Profile
US Census (ACS 5-year · Gazetteer)
619
population
$83,750
median household income
5
people / sq mi
$867
median gross rent
40.8
median age
251
housing units
251
households
130.3
land area (sq mi)