San Antonio Bay

By: Art Leatherwood

Type: General Entry

Published: 1952

Updated: June 1, 1995

San Antonio Bay, in southwestern Calhoun County (at 28°18' N, 96°44' W), opens onto Espiritu Santo Bay to the east and is protected from the Gulf of Mexico by Matagorda Island. The mouth of the Guadalupe River forms a large delta area on the western bank of the bay. Guadalupe Bay and Hynes Bay are northern extensions of San Antonio Bay. A ship channel has been dredged from the Seadrift area to the Gulf Intracoastal Waterway, which provides the only major shipping access to the bay. The southwestern shoreline of San Antonio Bay is the northeastern boundary of the Aransas National Wildlife Refuge.

The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this entry.

Art Leatherwood, “San Antonio Bay,” Handbook of Texas Online, accessed May 23, 2022,

Published by the Texas State Historical Association.

June 1, 1995