Most employment in Johnston itself is in the wholesale and retail sector, followed by healthcare and social services, then finance, insurance and real estate. Manufacturing makes up nearly 8% of the educated and productive labor force, closely followed by professional services. Nearly 49% of over 25s have a bachelor’s degree or higher. Greater Des Moines is attractive for business because of its central geographic location, good roads and rail, and access to a quality IT workforce. Des Moines also has a Foreign Trade Zone, providing special services for businesses trading internationally, and a large commercial airport – Iowa’s only port of entry.