Hey man,welcome to APK! There may not be anything going on around you YET but dont get discouraged... Parkour is spreading like wild fire and you've got a head start on everyone in your town.
Find a public park, a set of rails for a handicap ramp or someplace in the wilderness with rocks and trees to meet up at on a regular basis. I know in the beginning everyone wants to find a rooftop to climb but in reality you can do parkour in any environment and going up on roofs is generally discouraged as it's mostly pointless and draws unwanted attention and fear of liability.
If you havnt already, start reading everything you can about the philosophy of Parkour, how why we train, important warm ups and bodyweight exercises, etc. There is a whole world of information open to you through the internet right now. Make use of it by starting your own training sessions and making a thread for it so people can find you and meet up to learn and share info. If you post a thread in the Sessions forum on
Parkour California we can add it to our directory listing on the front page. Good luck!