Sariaya, officially the Municipality of Sariaya, is a municipality in the province of Quezon, Philippines. According to the 2020 census, it ha…Sariaya, officially the Municipality of Sariaya, is a municipality in the province of Quezon, Philippines. According to the 2020 census, it has a population of 161,868 people making it the second most populous in Quezon after the capital city of Lucena. Making Sariaya the most populous municipality in the province of Quezon.