The Archdiocese of Cincinnati () is a Latin Church ecclesiastical jurisdiction or archdiocese that covers the southwest region of the U.S. state of Ohio, including the greater Cincinnati and Dayton metropolitan areas. The Archbishop of Cincinnati is Dennis Marion Schnurr. The Archdiocese of Cincinnati is the metropolitan see of its province, with five suffragan dioceses. Geography In total, the Archdiocese of Cincinnati encompasses 230 parishes in 19 counties, , with the total membership of baptized Catholics around 500,000. The archdiocese administers 110 associated parochial schools and diocesan elementary schools. The mother church is the Cathedral Basilica of St. Peter in Chains, located at the corner of 8th and Plum Streets in Downtown Cincinnati. Cincinnati is the metropolis of the Ecclesiastical Province of Cincinnati, which encompasses the entire state of Ohio and is composed of the archdiocese and its five suffragan dioceses: Cleveland, Columbus, Steubenville, Toledo, and Youngstown. The Archdiocese of Cincinnati is bordered by the Diocese of Toledo to the north, the Diocese of Columbus to the east, the Diocese of Covington to the south, and the Archdiocese of Indianapolis and Diocese of Lafayette to the west. History Pope Pius VII erected the Diocese of Cincinnati, then constituting the whole of the state of Ohio, on 19 June 1821, in territory taken from the Diocese of Bardstown. The diocese lost all portions of its territory to the north of latitude 40' 41 on 23 April 1847, when Pope Pius IX erected the Diocese of Cleveland. However, this line cut through multiple counties, leading the bishops of Cleveland and Cincinnati to agree that:the counties of Mercer, Auglaze, Hardin, Marion, Morrow, Knox, Tuscarawas, Carroll, Jefferson, which belong to the diocese of Cincinnati shall constitute the northern boundary of the diocese of Cincinnati. And that all the counties north of those just named, shall compose the diocese of Cleveland. Holmes county, which is for the greater part south of the line above traced, is by mutual consent, assigned to the diocese of Cleveland. On July 19, 1850, Pope Pius IX elevated the diocese to an archdiocese with the dioceses of Louisville, Detroit, and Cleveland as suffragans. The Diocese of Columbus was erected from "the territory from the Ohio River to the Scioto River ... together with the Counties of Franklin, Delaware and Morrow." on March 3, 1868. Finally, in 1945, nine counties on the eastern edge of the archdiocese were annexed to the