'Grand Isle' definitions:

Grand Isle, LA -- U.S. town in Louisiana

From: Gazetteer 2000
Name :
Grand Isle, LA -- U.S. town in Louisiana
Population (2000) :
1541
Housing Units (2000) :
1875
Land area (2000) :
6.136451 sq. miles (15.893335 sq. km)
Water area (2000) :
1.622616 sq. miles (4.202557 sq. km)
Total area (2000) :
7.759067 sq. miles (20.095892 sq. km)
FIPS code :
30830
Located within :
Louisiana (LA), FIPS 22
Location :
29.227769 N, 90.012115 W
ZIP Codes (1990) :
70358
Note :
some ZIP codes may be omitted esp. for suburbs.

Grand Isle -- U.S. County in Vermont

From: Gazetteer 2000
Name :
Grand Isle -- U.S. County in Vermont
Population (2000) :
6901
Housing Units (2000) :
4663
Land area (2000) :
82.616201 sq. miles (213.974970 sq. km)
Water area (2000) :
112.056340 sq. miles (290.224577 sq. km)
Total area (2000) :
194.672541 sq. miles (504.199547 sq. km)
Located within :
Vermont (VT), FIPS 50
Location :
44.816038 N, 73.299885 W