yes. There are lots of people playing.
Not many people are leveling up though. Most people have the jobs they want leveled. So, you might be playing alone until you get leveled. I suggest Asura, it has good population, and the reddit linkshell which is open to everyone. Feel free to google it.
There are also linkshell concierges you can go to get a pearl from a shell that's recruiting.
Edited, Jul 3rd 2015 10:31am by Olorinus