Fairfax Map
Fairfax is a town in Gregory County, South Dakota, United States. The population was 115 at the 2010 census.
Fairfax is located at 43°1?41?N 98°53?23?W / 43.02806°N 98.88972°W / 43.02806; -98.88972 (43.028069, -98.889639).
According to the United States Census Bureau, the town has a total area of 0.3 square miles (0.8 km²), all of it land.
Nearby cities include Spencer, Herrick, Pickstown, Geddes, Lake Andes.