The capital was designated as Enna (then called Castrogiovanni), instead of Piazza Armerina, due to the influence of politician Napoleone Colajanni.

Following the suppression of the Sicilian provinces, it was replaced in 2015 by the free municipal consortium of Enna (Italian: libero consorzio comunale di Enna).

Located in the center of the island, it is the only landlocked province in Sicily.

The province of Enna has an area of 2,562 square kilometres (989 sq mi), and a total population of 168,052 (2017).

The main comunes by population are: In Enna, for Good Friday, there is a procession, and on 2 July is held the Enna's Our Lady feast; Piazza Armerina, on 11, 12 and 13 August, is seat of the Palio dei Normanni, an ancient and traditional feast whose protagonists are the horses.