Bonner Springs is a city in Wyandotte, Leavenworth, and Johnson counties, Kansas, United States. It is part of the Kansas City Metropolitan Area. As of the 2010 census, the city population was 7,314, and in 2018 the estimated population was 7,804. Bonner Springs was incorporated as a city on November 10, 1898. Bonner Springs is home to the Providence Medical Center Amphitheater, the National Agricultural Center and Hall of Fame, and the annual Kansas City Renaissance Festival.