'Silver Spring' definitions:

Silver Spring, MD -- U.S. Census Designated Place in Maryland

From: Gazetteer 2000
Name :
Silver Spring, MD -- U.S. Census Designated Place in Maryland
Population (2000) :
76540
Housing Units (2000) :
31208
Land area (2000) :
9.421985 sq. miles (24.402828 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
9.421985 sq. miles (24.402828 sq. km)
FIPS code :
72450
Located within :
Maryland (MD), FIPS 24
Location :
39.004242 N, 77.019004 W
ZIP Codes (1990) :
20901 20903 20910
Note :
some ZIP codes may be omitted esp. for suburbs.