What is "toa alta zona"

Population (2000): 4368
Housing Units (2000): 1498
Land area (2000): 0.618682 sq. miles (1.602378 sq. km)
Water area (2000): 0.022296 sq. miles (0.057746 sq. km)
Total area (2000): 0.640978 sq. miles (1.660124 sq. km)
FIPS code: 82488
Located within: Puerto Rico (PR), FIPS 72
Location: 18.388067 N, 66.249748 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
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