Manhattan's economy is heavily based on public entities. Kansas State University is the largest employer in town, and its approximately 24,000 students help support the retail and entertainment venues in the city. The second-largest employer in Manhattan is the city school district. Additionally, many civilians and military personnel employed at nearby Fort Riley also live in Manhattan and support its economy, including more than 3,500 civilian Fort Riley employees. Finally, most of the 150 employees in the Kansas Department of Agriculture work in a new office building in Manhattan, next to the future site of the National Bio and Agro-Defense Facility (NBAF).