The patron saint of Santa Ninfa is Saint Nympha, celebrated on 12 November.
The town was founded in 1606 by Luigi Arias Giardina who, with the approval of King Philip III of Spain, began to urbanise it with streets and new civil and religious buildings. The core of its origins is the castle of Rampinzeri, at the foot of a hill where remains of an ancient Sican necropolis have been found. In 1770, after the founding of the archpriory of Santa Ninfa, the town was declared a baronial fief, and over the following centuries the fief passed from family to family, gradually enriched with new buildings. The municipal territory also preserves the strict nature reserve of the Grotta di Santa Ninfa.
