High Quality Content by WIKIPEDIA articles! Toa Alta (TO-ah AHL-tah) is a municipality of Puerto Rico located in the northern coast of the island, north of Naranjito; south of Dorado and Toa Baja; east of Vega Alta and Corozal; and west of Bayamón. Toa Alta is spread over eight wards and Toa Alta Pueblo (the downtown area and the administrative center of the city). It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area.Toa Alta located west of the capital city of San Juan, the town was founded in 1751 making it one of the oldest towns on the Island. The construction of the San Fernando Rey church in the town square began in 1752. The name Toa Alta comes from the Taino word for valley, "Thoa".