Mexico and Spain formed two of the original six sections of Six Flags over Texas when the park opened in 1961. Today the Mexico and Spain areas are usually mentioned together as a single section, even though the delineation between the two is pretty obvious. The Mexico and Spain area of the park houses some of the oldest (El Sombrero and El Aserradero) and unique (Casa Magnetica) attractions. The area also offers plenty of shade and natural beauty, much of it original to the park's initial opening.

A reimagined Spain area opened in 2026 alongside the introduction of the record-breaking Tormenta Rampaging Run. Some of the area remains closed during the construction of Cocina Abuela, what is set to become the park's premier dining location.