From 2,997 active users across all lemmy instances at the beginning of June, the number increased to 52,797 by June 30th. Source.
An active user on Lemmy is "someone who has posted or commented on our instance or community within the last given time frame.” Source. That means lurkers are not counted as active users. There are currently almost 200k total users spread across the top 10 non-bot lemmy instances.
We’re really building something here!
EDIT: Looking for a lemmy app? Here’s a whole list: https://lemmy.world/post/465785
There are a few ways. The easiest, albeit least efficient, is to just set your feed to show “all” and join any communities that seem interesting as you’re scrolling.
The second is to hit the “communities” tab at the top of the page, and choose “all”. This will show you a list of every community in lemmy and from there you can join whatever you want to.
Thirdly, you can use this website which is a bit more comprehensive than just using the communities tab. Some people may prefer it, others may not, it’s totally up to you.