10 fastest-growing US retirement hotspots: Goodyear, AZ tops, followed by Fort Myers, FL; 4 Florida cities included.

10 fastest-growing retirement hotspots in the US, according to a new GOBankingRates study, include four cities in Florida. Goodyear, AZ ranked as the top retirement hotspot, followed by Fort Myers, FL. The study, which looked at cities with at least 7,500 people aged 65+, found that these locations offer a growing senior population and potentially attractive living conditions for retirees.