8. Houston, TX
Senior population growth (2000 to 2010): 39 percentHouston is well set up for retirees, with at least 55 active adult retirement communities. The state has no income tax, and Houston is relatively inexpensive compared to other big cities: Its housing costs are 44 percent below the national average for cities of more than two million people, and its cost of living is 23 percent below the average for those cities. The weather is cool as Texas temperatures go: Average high/low temperatures in January are 63/42 degrees and in summer 92/72. And of course it has all of the culture of a major city, with its own ballet, drama, opera, and symphony companies.