For the worst-hit ZIP code in South Florida — 33469, a stretch of coastal Palm Beach County that covers parts of Jupiter and Tequesta — that will mean a 342% premium increase, on average.

The most popular ZIP on the list was 34953, Port St. Lucie, located in St. Lucie County just outside of South Florida. ZIP code 33467 (Greenacres) jumped up four spots to take the third spot on ...