I had a couple of friends who were into the show at the time, but over the years they drifted a bit away from it. Even then I think I was more into it than anyone else I knew.
I could also feel a bit isolated. I started to learn of fandom through David Gerrold's books like The World Of Star Trek,
but this was all still twenty years or more before the Internet. So all I had were books and Starlog