Tennessee Is Ranked 25th As The Best State To Retire Rich. The Information From The Go Banking Rates Retirement Savings Survey Shows With Little To Nothing In Savings, More Than Half Of Americans Could Retire Broke. The Best State To Retire Rich Is Delaware Because With No Sales Tax, Property Tax, And No Tax Social Security Benefits, Retirees Can Hang Onto More Of Their Money. By The Way, The Worst Place To Retire Rich Is Hawaii.