[2] The archdiocese covers an area of 8,735 km2 (3,400 sq mi)[3] and spans of the counties of Oxfordshire, Staffordshire, West Midlands, Warwickshire and Worcestershire.

The see in the City of Birmingham where the archbishop's seat is located at the Metropolitan Cathedral and Basilica of Saint Chad.

With the gradual abolition of the legal restrictions on the activities of Catholics in England and Wales in the early 19th century, Rome decided to proceed to bridge the gap of the centuries from Queen Elizabeth I by instituting Catholic dioceses on the regular historical pattern.

[4] In the early period from 1850 the diocese was a suffragan of the Metropolitan See of Westminster, but a further development was the creation under Pope Pius X, on 28 October 1911, of a new Province of Birmingham.

The current archbishop is The Most Reverend Bernard Longley, who was appointed the ninth archbishop of Birmingham on 1 October 2009 and installed at the Metropolitan Cathedral and Basilica of Saint Chad on 8 December 2009, the Solemnity of the Immaculate Conception and one of the patronal feasts of the archdiocese, St Chad being the other.