According to recent statistics, the largest demographic group using Facebook is between the ages of 25 and 34, accounting for about 29% of the platform's user base. This is followed by users aged 18-24, who make up 22% of the total user base.
Women tend to use Facebook slightly more than men, with about 56.2% of Facebook users being female and 43.8% being male.
In terms of geographic location, the highest number of Facebook users are in Asia, with India having the largest number of Facebook users globally. The United States, Brazil, Indonesia, and Mexico also have significant numbers of Facebook users.
It's worth noting that these statistics can vary depending on the source and the time period they were collected. Nonetheless, they provide a general idea of who uses Facebook the most.