Calaca, officially the City of Calaca, is a component city in the province of Batangas, Philippines. According to the 2020 census, it has a populat…Calaca, officially the City of Calaca, is a component city in the province of Batangas, Philippines. According to the 2020 census, it has a population of 87,361 people. Calaca is home to the lively Calacatchara festival (a portmanteau of Calaca and atchara.