Doña Remedios Trinidad is a first class partially urban municipality in the province of Bulacan, Philippines. According to the 2015 census, it has a population of 22,663 people. It is known as "Bulacan's Last Frontier" because of its natural environment and as it is the least travelled town in the province. ^ "Region III ". Census of Population : Total Population by Province, City, Municipality and Barangay. PSA. Retrieved 20 June 2016.