Interestingly enough, Florida had a "Catholics only" town in the late 19th century. The town of San Antonio, near St. Leo's (home of the Benedictine abbey and university of that name), was founded by a wealthy individual as a place for Catholics to come and live, rear their kids in a Christian environment with a Catholic school in town, etc. The idea eventually faded away, and while the town with its central square remains, the only sign that it was once Catholic seems to be the large display of Nativity scenes the residents put up every year.
St. Leo's, of course, is still there and doing just fine. Both are in central Florida, probably an hour and a half or so from Ave Maria.
[I]n 1565, Pedro Menedez de Aviles placed a small wooden cross in Floridas soil and founded the Mission of Nombre de Dios. The beginnings of Christianity in this new land led to numerous missions throughout Florida and, eventually, to the flourishing of the faith that we celebrate throughout this country. The Great Cross is a tribute to that growth. It serves to remind the visitor of Christs ultimate sacrifice on the Cross, as well as the role played by the Catholic religion in the history of both Florida and our Nation.