Also in the article by Mike Schneider and Jesse J. Holland is news about Palm Beach County:
While some of Florida's smaller metro areas were the nation's fastest-growing communities, in pure numbers, Florida's population growth was driven by new people moving to the state's largest cities along the Interstate 4 corridor and in South Florida.
More than half of Florida's growth last year came from three metropolitan areas: South Florida, Orlando and Tampa. [emphasis added]
South Florida, an area stretching from Palm Beach County to Miami-Dade County with 5.9 million residents, had the eighth-highest population increase in the nation with a jump of 66,000 new residents from July 2013 to July 2014. International migration - people moving in from other countries - accounted for three-quarters of the growth, while natural population growth made up the rest.