What is "san juan zona"

Population (2000): 421958
Housing Units (2000): 177450
Land area (2000): 39.469180 sq. miles (102.224702 sq. km)
Water area (2000): 6.918446 sq. miles (17.918692 sq. km)
Total area (2000): 46.387626 sq. miles (120.143394 sq. km)
FIPS code: 76770
Located within: Puerto Rico (PR), FIPS 72
Location: 18.411362 N, 66.059861 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
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