Somebody had done a very good approximation on this topic and they reached around 250k people having 1 bitcoin and above. Will try to find it again.
Discussion
Wow that’s interesting!
The „chart“ shows more than 1 million addreses above 1 btc
When you try to calculate people with more than 1 bitcoin we need to consider people with multiple wallets of > 1 bitcoin, but also people that have smaller wallets that all add up to >1 bitcoin. I remember the analysis not the source 😅