'Keystone, SD' definitions:
Keystone, SD -- U.S. town in South Dakota
From: Gazetteer 2000
Name :
Keystone, SD -- U.S. town in South Dakota
Population (2000) :
311
Housing Units (2000) :
209
Land area (2000) :
2.864807 sq. miles (7.419816 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
2.864807 sq. miles (7.419816 sq. km)
FIPS code :
33820
Located within :
South Dakota (SD), FIPS 46
Location :
43.893744 N, 103.426080 W
ZIP Codes (1990) :
57751
Note :
some ZIP codes may be omitted esp. for suburbs.