What is "port lavaca"

Population (2000): 12035
Housing Units (2000): 4791
Land area (2000): 9.785691 sq. miles (25.344823 sq. km)
Water area (2000): 3.851497 sq. miles (9.975332 sq. km)
Total area (2000): 13.637188 sq. miles (35.320155 sq. km)
FIPS code: 58916
Located within: Texas (TX), FIPS 48
Location: 28.615635 N, 96.629741 W
ZIP Codes (1990): 77979
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: