Siloam Springs is a city in Benton County, Arkansas, United States, and located on the western edge of the Northwest Arkansas metropolitan area. As of the 2020 census, the population of the city was 17,287. The community was founded in 1882 and was characterized by the purported healing powers of the spring water feeding Sager Creek and trading with nearby Native American tribes. The city shares a border on the Arkansas–Oklahoma state line with the city of West Siloam Springs, Oklahoma, which is within the Cherokee Nation territory. It is home of John Brown University.