'Rock Island, FL' definitions:

Rock Island, FL -- U.S. Census Designated Place in Florida

From: Gazetteer 2000
Name :
Rock Island, FL -- U.S. Census Designated Place in Florida
Population (2000) :
3076
Housing Units (2000) :
1015
Land area (2000) :
0.613771 sq. miles (1.589660 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
0.613771 sq. miles (1.589660 sq. km)
FIPS code :
61412
Located within :
Florida (FL), FIPS 12
Location :
26.153712 N, 80.180014 W
Note :
some ZIP codes may be omitted esp. for suburbs.