How Many Vegetarians Are There? 
Vegetarian societies are often asked how many vegetarians there are in their country, city, etc. Often, no data are available. However, there was a new poll in the U.S., which you can read about at www.vrg.org/press/2009poll.htm  Approximately, 3% of the population are lacto-ovo vegetarian and about 1% are vegan. You might be able to use the survey’s questions to do a similar study of your own.