Angadanan, officially the Municipality of Angadanan, is a municipality in the province of Isabela, Philippines. At the 2020 census, it had a pop…Angadanan, officially the Municipality of Angadanan, is a municipality in the province of Isabela, Philippines. At the 2020 census, it had a population of 44,977. The town derived its name from the nearby Angaranan Creek, a notable geographical feature of the area. The creek serves a significant role in the early development and identity of the settlement. The creek's presence influenced the local ecosystem by providing a source of potable water for both people and livestock. It also likely served as a critical landmark for the town's first inhabitants. The decision to name the town after Angaranan Creek reflects the community's connection to the natural landscape and highlights the importance of the creek in the town's history and daily life.