Tarlac City, officially the City of Tarlac, is a component city and the capital of the province of Tarlac, Philippines. According to the 2020 census, i…Tarlac City, officially the City of Tarlac, is a component city and the capital of the province of Tarlac, Philippines. According to the 2020 census, it has a population of 385,398 people making it the most populous in the province.