Bay Springs is a city in and the western county seat of Jasper County, Mississippi, United States. The population was 1,670 at the 2020 census, down from 1,786 at the 2010 census. State highways 15 and 18 intersect at the city. It is part of the Laurel, Mississippi micropolitan area. The area was settled in the 1880s by Joe Blankenship, who built the sawmill for the yellow pine timber industry that comprised the town's industrial base.