From Wiki (sueme)
Angelina "Jolie" Pivarnick 22 Italian American
Jenni "J-Woww" Farley 23 Irish-Spanish
Michael "The Situation" Sorrentino 27 Italian American
Nicole "Snooki" Polizzi 21 Chilean (including Italian Chilean)
Paul "DJ Pauly D" DelVecchio 28 Italian American
Ronnie Ortiz-Magro 23 Puerto Rican-Italian American
Sammi "Sweetheart" Giancola 22 Italian American
Vinny Guadagnino 21 Italian American
Deena Nicole Cortese 23 Italian American
That's when the show started I think (not up-to-date)
http://en.wikipedia.org/wiki/Jersey_...28TV_series%29 Interesting side note: Snooki is adopted