Roman Catholic Diocese of Basel

Diocese of Basel Dioecesis Basileensis Bistum Basel
Solothurn Cathedral, the seat of the diocese
Location
Country	Switzerland
Territory	Aargau, Basel-Country, Basel-City, Berne, Jura, Lucerne, Schaffhausen, Solothurn, Thurgau, and Zug
Metropolitan	Immediately Subject to the Holy See
Statistics
Area	12,585 km2 (4,859 sq mi)
Population - Total - Catholics	(as of 2012) 3,096,000 1,094,000 (35.3%)
Parishes	520
Information
Denomination	Roman Catholic
Rite	Latin
Established	740 (As Diocese of Basel) 7 September 1888 (As Diocese of Diocese of Basel e Lugano) 8 March 1971 (As Diocese of Basel)
Cathedral	St. Ursus Cathedral, Solothurn
Secular priests	675
Current leadership
Pope	Francis
Bishop	Felix Gmür
Auxiliary Bishops	Denis Theurillat, Martin Gächter
Emeritus Bishops	Hansjörg Vogel
Map
Map of the modern diocese of Basel within Switzerland
Website
Website of the Diocese

The Diocese of Basel (German: Bistum Basel; Latin: Dioecesis Basileensis) is a Roman Catholic diocese in Switzerland.

Historically, the bishops of Basel were also secular rulers of the Prince-Bishopric of Basel (German: Fürstbistum Basel).

The bishop of Basel has not resided in the city of Basel since 1528. Solothurn is the seat of the Bishop of Basel.

Today the diocese of Basel includes the Swiss cantons of Aargau, Basel-Country, Basel-City, Berne, Jura, Lucerne, Schaffhausen, Solothurn, Thurgau, and Zug.

For a list of bishops prior to 1583, see: List of Bishops of Basel