The Public Skatepark Development Guide staff stays up-to-date on current market research and has used various studies from notable market research firms to derive a state-by-state average of skateboarding activity.

• Board-Trac
• Sporting Goods Manufacturing Association 

The numbers presented in this Guide incorporate all types of skateboarders—even those who only skate intermittently—and offer a great baseline from which to start more penetrating skatepark analyses.