GA has favorable tax treatment for retirees as well. Unless the SS and pension income is high, there shouldn't be any state income tax. Plus, if I understand what I read correctly, age 65+ residents are exempt from property tax on the first 10 acres. More about tax friendly retirement states can be found here:
State-by-State Guide to Taxes on Retirees
City Data has lots of information as well, including charts showing political leanings, crime stats for most locations. The forums are active if one doesn't mind the liberal leaning perspectives and is aware that real estate agents troll some threads.
City-Data.com - Stats about all US cities - real estate, relocation info, crime, house prices, cost of living, races, home value estimator, recent sales, income, photos, schools, maps, weather, neighborhoods, and more