The Diocese of Jefferson City is a Roman Catholic ecclesiastical territory located in the central region of the U.S. state of Missouri. As one of the suffragan dioceses of the metropolitan Archdiocese of St. Louis, it is under the pastoral leadership of the Bishop of Jefferson City.Established on May 26, 1847, the Diocese of Jefferson City spans 25 counties and serves approximately 90 Catholic parishes, as well as various educational institutions, charities, and ministries. The diocese is home to over half a million Catholics and encompasses an area of around 31,476 square miles.The Diocese of Jefferson City's mission is to carry out the teachings and traditions of the Roman Catholic Church within its boundaries while fostering spiritual growth among its parishioners. The diocese collaborates with various religious organizations and charities in its community to provide aid, support, and education to those in need.