 Aransas Pass is located at (27.9019, -97.1395),F on the shore of Redfish Bay, a tidal water body between Corpus Christi Bay to the south and Aransas Bay to the north.The city limits of Aransas Pass encompass most of Redfish Bay and its islands, most of which are in Nueces County, as well a portion of Aransas Bay in Aransas County.The land portion of the city is primarily in San Patricio County, extending north into Aransas County.