Ever since I discovered it, I've wanted to learn Taekkyon, but I haven't been able to find a single school closest I've gotten is a TKD school named "Taekyon"
unfortunatly it seems that taekkyon is quite hard to find outside of korea, because as far as i know it was really close to deissapear.
theres a few Taek'kyeon schools in the U.S and certain European countries. The respective associations are working to spread the art more elsewhere but it will take some time.
There is a school in Cincinnati, OH taught by Mst. Al Cole. He is associated with one of the Taek'kyon orgs from Korea. That is the closest one I know of in the US.