What was the Population of Philippi at the time of Paul the Apostle?

During the time of Paul the Apostle, the population of Philippi is estimated to have been around 10,000 to 12,000 people. Philippi was a significant city in ancient Macedonia and a Roman colony, known for its strategic location and thriving economy. The city's population would have included a mix of Romans, Greeks, and other ethnic groups, making it a diverse and cosmopolitan urban center during that time.