According to recent estimates, as of January 2021, there were approximately 1.8 million LinkedIn users in Greece. 83% of these users are between the ages of 25-54. This number has been steadily increasing in recent years as more and more people in Greece turn to LinkedIn as a valuable tool for networking, job searching, and business development.
Source: https://napoleoncat.com/stats/linkedin-users-in-greece/2021/01/