About This Place
Astoria is a town in Deuel County, South Dakota, United States. The population was 139 at the 2010 census.
Astoria is located at 44°33′28″N 96°32′47″W / 44.55778°N 96.54639°W / 44.55778; -96.54639 (44.557702, -96.546326).
According to the United States Census Bureau, the town has a total area of 0.2 square miles (0.4 km²), all of it land.