How old is everyone on jersey shore

Jersey Shore cast and their ages: DJ Pauly D. 31, Jenni Farley 25, Ronnie Ortiz-Magro 25, Nicole 'Snooki' Polizzi 23, and Julissa Bermudez 27.
Updated on Monday, February 06 2012 at 07:00PM EST
Source: www.imdb.com/...