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
Yeah I think it might be better to explain it like if anyone could boot up their own reddit and link to other people’s reddits. Some are popular, some aren’t, some don’t want to be huge because they want to be niche like some subreddits did. We may have subreddits with the same name but it’s ok because people can tell based on which Reddit it’s on. Also they’re called instances not reddits and communities not subreddits.