A large influx from surrounding regions would seem to be consistent across all the counties listed.
No. 1: Collier County, Fla.
Top origin: Lee County, Fla. (2,987 people)
No. 2: Greene County, Ga.
Top origin: Putnam County, Ga. (76 people)
No. 3: Nassau County, Fla.
Top origin: Duval...