Bambang, officially the Municipality of Bambang, is a 1st class municipality in the province of Nueva Vizcaya, Philippines. According to the 2020 …Bambang, officially the Municipality of Bambang, is a 1st class municipality in the province of Nueva Vizcaya, Philippines. According to the 2020 censusus, it has a population of 55,789 people. The municipality is known for its salt springs at the Salinas Natural Monument.