Columbia, South Carolina
JASON O. WATSON–ALAMY
Low housing costs are a big reason to breathe easy. Columbia's median home price is about $147,000, and average property taxes are just over a grand. And Columbia's seniors don't live in conclaves, so house hunters can choose Victorian-style homes on historic streets or ultramodern apartments near the city's new riverfront esplanade, in a neighborhood dotted with art galleries.