The town is known for its fiestas and cultural traditions throughout the year, starting in January with Fiesta de los Moros, in May, Santa Rita's festivities, in July the patron Santiago, and in December, the annual Christmas carnaval.

Apastepeque is a city with a rich religious and cultural tradition and character that fuses together the elements of pre and colonial influences with those of the new generation.

Notable fiestas are celebrated in the city such as that between 16 and July 25 in honor of the patron saint Saint James the Great (Santiago Apóstol), where they indulge in much religious, cultural and social activity such as masquerades, dances and concerts.

In the Nahuatl language, Saguayapa, a settlement adjacent to the main town means “Rivers of frogs and sands”.

These twin towns, are separated by the Raymundo Street to the north of the parochial church Santiago Apóstol.