Islands of Adventure: 4 (The Incredible Hulk, Dragons Challenge: Hungarian Horntail & Chinese Fireball, and Flight of the Hippogriff)
Universal Studios Florida: 3 (Hollywood Rip Ride Rockit, Revenge of the Mummy, and Woody Woodpecker's Nuthouse Coaster)
Kings Island: 13 (Racer: Red and Blue, Firehawk, Backlot Stunt Coaster, Rugrats Runaway Reptar (pre-theme change), Son of Beast, Invertigo, Flight of Fear, Flight Deck, Adventure Express, Vortex, Beast, and Fairly Odd Coaster (pre-theme change))
Walt Disney World: 6 (Space Mountain: Both Tracks, Rock N Roller Coaster, Goofy's Barnstormer, Big Thunder Mountain Railroad, and I counted Test Track because I've always considered it a roller coaster)
Six Flags Fiesta Texas: 8 (Rattler, Romp Bomp A Stomp, Road Runner Express, Boomerang Coast to Coaster, Poltergeist, Superman Krypton Coaster, Tony Hawk's Big Spin, and Goliath)
Non-Theme Parks: 1 (An unnamed coaster at the Columbus Zoo in Ohio)
Total: 34 or 35 (Depending on whether or not you count Test Track)