7. Highland Park, Texas (Average Household Income: $365,025)

This Dallas suburb is the richest town in the state of Texas. Since Highland Park is situated only four miles north of downtown Dallas, it’s where many of the state’s most powerful and wealthy people reside.

For example, former Texas Governor Bill Clements picked Highland Park. Also, when picking where to film the show Dallas, the executives chose Highland Park as the preferred filming location for its attractive looks.