Quezon City, also known as the City of Quezon and Q.C., is the most populous city in the Philippines. It is also the richest city in the Philipp…Quezon City, also known as the City of Quezon and Q.C., is the most populous city in the Philippines. It is also the richest city in the Philippines. According to the 2020 census, it has a population of 2,960,048 people. It was founded on October 12, 1939, and was named after Manuel L. Quezon, the second president of the Philippines.