According to the official statistics page, today OpenStreetMap has hit the milestone of 10 million registered users! This is not the first time though; in fact it already happened earlier this year and in 2023 (during which year the amount even exceeded 11 million!); lately, the number of registered users graph shows a saw-tooth pattern, probably, in my opinion, due to the SPAM accounts being continuously banned by the admins.

By the way, if you happen to have an account on OSM wiki, please check the translation of Template:Contributors/count in your language as it may need to be updated. That template is pretty simple but it’s used by a couple of “main” wiki pages.

However, the number seems pretty high, but it may be worth noting that only about 23% (~2.25 million) of the total number of registered users has made at least one modification in the OSM database. Considering that the database has received 17 billion¹ edits, that means that every contributor has made an average of 7,400 changes from their entire lifespan as a user (you can see how many contributions you made on your HDYC page).

One last question that’s been bothering me: how many users would be registered on OSM if no one had been deleted or banned? Well, according to the API, at the time of writing, the last valid user id is 23,302,305 so the answer is more than double the number of currently registered users.

Imagine what could be achieved with twice as many contributors!

¹ number calculated using the file changesets.osm dated 2025-04-07 (license ODbL 1.0); the values shown here are unverified and may be incorrect.

Happy mapping to all 10 million users!