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

Its coat of arms is a red crest and two green leaf stems on top with a laurel leaf on the right and a crown in the middle.

[2] In counterclockwise order:[3] The province extends to the central part of Sicily in the northwestern direction where the capital is located.

The commune of Resuttano is found in an enclave of the province of Palermo near Caltanissetta between Monte Stretto and Portella del Vento.

[4] Another example in the same province is that of the two small localities of Cannetti and Corfidato, two hamlets (Frazioni) of the comune of Enna, 15 km (9.3 mi) away, within the territory of the comune of Caltanissetta.