Bocaue, officially the Municipality of Bocaue, is a 1st class municipality in the province of Bulacan, Philippines. According to the 2020 census, it has a population of 141,412 people. With the continuous expansion of Metro Manila, Bocaue is part of Manila's built-up area which reaches San Ildefonso in its northernmost part. The Bocaue River runs through most of the municipality.