Brunsville, Iowa is a small town located in Plymouth County. The area experiences a humid continental climate, with cold winters and hot summers. This climate is characterized by large seasonal temperature differences, with precipitation distributed evenly throughout the year. The town lies within the Little Sioux River watershed and is surrounded by agricultural land uses, contributing to nutrient and sediment runoff into the river. Outdoor recreation opportunities in Brunsville include fishing and boating on the Little Sioux River, as well as hiking and picnicking in the nearby natural areas. The town also hosts an annual Fourth of July celebration with a parade, fireworks, and other festivities.