<P> In January 2010, MTV announced that a second season consisting of 12 episodes had been ordered and would air that summer . It would follow all of the first - season cast as they avoided the cold northeast winter by relocating to the South Beach, Florida . In May 2010 the cast relocated back to the Jersey Shore for the rest of filming, but it was later determined that the production company had enough footage from the Miami shoot to fill the entire second season, and that the footage to be shot at the Jersey Shore would be used for a third season . The second season premiered on July 29, 2010, averaging 5.252 million viewers . Season 2 was the #1 television series in the P12 - 34 demographic for the summer of 2010 across all TV and has also posted continued growth every week . </P> <P> On July 20, 2010, MTV announced that the cast would return for a third season, with the exception of Pivarnick . Season 3 returned to the original Jersey Shore summer setting, and replaced Angelina with Deena Nicole Cortese, a longtime friend of Polizzi . The season's January 6, 2011 premiere was viewed by a record 8.45 million viewers, making it MTV's most viewed series telecast ever . The second episode of the season once again set a series and MTV high at the time, with 8.56 million viewers, only to set another record with the airing of the fourth episode, which garnered 8.87 million viewers . </P> <P> On January 25, 2011, it was confirmed that the show had been renewed for a fourth season, to be filmed in Italy during the first half of 2011 . The fourth season premiered August 4, 2011 . MTV confirmed in June 2011 that the fifth season would return to Seaside Heights . </P> <P> Believed complications caused by Nicole Polizzi's pregnancy, and several cast members (including Polizzi, DelVecchio, and Farley) receiving spin - offs sparked talk about the future of the series past the fifth season, however on March 19, 2012, MTV officially confirmed that the series would return for a sixth season, with all cast members returning . Filming for the sixth season took place in mid-2012, and featured Polizzi nearly eight months pregnant . MTV said in a statement, "While things will definitely be a little different this time when they hit the boardwalk, their trademark hilarity and family dysfunction will remain the same". </P>

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