'Arnold, MD' definitions:

Arnold, MD -- U.S. Census Designated Place in Maryland

From: Gazetteer 2000
Name :
Arnold, MD -- U.S. Census Designated Place in Maryland
Population (2000) :
23422
Housing Units (2000) :
8623
Land area (2000) :
10.799852 sq. miles (27.971486 sq. km)
Water area (2000) :
2.608422 sq. miles (6.755782 sq. km)
Total area (2000) :
13.408274 sq. miles (34.727268 sq. km)
FIPS code :
02275
Located within :
Maryland (MD), FIPS 24
Location :
39.047263 N, 76.496552 W
ZIP Codes (1990) :
21012
Note :
some ZIP codes may be omitted esp. for suburbs.