Melissa Kaplan at http://www.anapsid.org/societies maintains lists of U.S. herp organizations by state, and by country outside of the United States. She also has a document on how to start your own herp society. If these sources don't list a society near you, start asking around. If there's a local university, ask someone in the biology or environmental science department. Ask the zoo, aquarium, or museum. If there's a local pet store that pays a lot of attention to reptiles, ask there. If all this fails, you might have to start a society of your own. Or you could move!