According to this video, if you are 65 plus, you are in the
top 50%, if you have a median net worth of $281,000;
top 10%, if you have a median net worth of $1,900,000
top 5%, if you have a median net worth of of $3,200,000
top 1%, if you have a median net worth of $16,700,000.
The numbers are from 2019.
https://www.youtube.com/watch?v=eb4U4k0cwDk