'Montgomery County, IN' definitions:

Montgomery -- U.S. County in Indiana

From: Gazetteer 2000
Name :
Montgomery -- U.S. County in Indiana
Population (2000) :
37629
Housing Units (2000) :
15678
Land area (2000) :
504.511307 sq. miles (1306.678230 sq. km)
Water area (2000) :
0.826376 sq. miles (2.140304 sq. km)
Total area (2000) :
505.337683 sq. miles (1308.818534 sq. km)
Located within :
Indiana (IN), FIPS 18
Location :
40.032010 N, 86.887139 W