The only schools you need are book and videos. It is a plus to go to magic clubs and hang out with other magicians but not a necessity. there were none in my local area growing up and still are not any. I plan to start a club sometime in the future if I get time. I have done magic and mentalism for 32 years now and about 25 years as profession, and rarely ever get time to meet with other magicians. A few times a year tops. But books and video are all you need. Forums are also a very good tool to find out tips and information about what products to buy etc.
But those are all you will ever need to become a professional or just to advance your skills as a hobby. If you must attend a school then look into the Magic and Mystery School by Jeff McBride and Eugene Burger. They also offer online classes. http://virtual.magicalwisdom.com/
But not necessary at all to obtain sucess with magic, being a hobby or as a career. I became a professional before I even had one magic VHS tape, and did my first gigs with material that I learned from library books. Some I still do today. "The Amateur Magician's Handbook by Henry Hay" and "The Magic Book by Harry Lorayne" is what started it all for me and built my foundation, followed by RRTCM, Mark Wilson's Complete Course, and the Tarbell Course.