'Big Arm' definitions:
Big Arm, MT -- U.S. Census Designated Place in Montana
From: Gazetteer 2000
Name :
Big Arm, MT -- U.S. Census Designated Place in Montana
Population (2000) :
131
Housing Units (2000) :
124
Land area (2000) :
5.448243 sq. miles (14.110884 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
5.448243 sq. miles (14.110884 sq. km)
FIPS code :
05800
Located within :
Montana (MT), FIPS 30
Location :
47.802296 N, 114.280952 W
ZIP Codes (1990) :
59910
Note :
some ZIP codes may be omitted esp. for suburbs.