During the late 20th century, the dominant industries in the municipality were manufacturing of metal, plastic, concrete, textiles, electronic products and liquor. Fruit is also grown and dairy cattle are raised here. According to the Department of Agriculture (2002), Toa Baja had only three farms, which represents a decrease of 86 percent from the 22 that existed in 1998.
Toa Baja is bordered on the north by the Atlantic ocean, on the west by the municipality of Dorado, on the south by Toa Alta and on the east by the municipalities of Cataño and Bayamón. Geographically, it is part of the region called the northern coastal plain. Its land is very fertile.
The municipality's hydrological system consists of La Plata (Toa) River, the longest river on the island, and the Cocal canal and various streams.
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