No. 2 - Keller, TX
Number of households: 20,429
Change YOY: 4.91 percent
Change since 2000: 108.61 percent
Average household income: $120,348
Why: Texas continues to grow rapidly. Keller, an affluent suburb of Fort Worth, has a low crime rate, an excellent school district, and a variety of housing. It also offers easy access to Fort Worth, major highways, business centers, and the Dallas-Fort Worth International Airport.