Bangsund is a village in the municipality of Namsos in Nord-Trøndelag county, Norway. It lies along the Løgnin arm of the Namsenfjorden, about 15 kilometres (9.3 mi) south of the town of Namsos. The 0.66-square-kilometre (160-acre) village has a population (2013) of 918. The population density is 1,391 inhabitants per square kilometre (3,600/sq mi).