Jefferson County, Missouri

Jefferson County government serves residents and businesses south of St. Louis in Missouri. Its county executive and council oversee administration and local policy, while elected offices carry out duties established by state law. Departments manage courts, elections, property assessment, public works, planning, parks and emergency management. The county sheriff and prosecuting attorney perform law enforcement and justice functions. Public works staff maintain county roads and bridges, handle stormwater matters and support public facilities. Government offices based in Hillsboro coordinate records, taxation and community programs across the county’s municipalities and unincorporated areas.