Ibajay, officially known as the Municipality of Ibajay, is a 3rd class municipality in the province of Aklan, Philippines. During the creation …Ibajay, officially known as the Municipality of Ibajay, is a 3rd class municipality in the province of Aklan, Philippines. During the creation of Aklan Province in 1956, Ibajay was its biggest municipality in terms of population. According to the 2020 census, Ibajay has a population of 52,365 people, making it the third most populated town in Aklan.