It is in zone 1, between Blackfriars station and Farringdon station on the Thameslink service. It was opened in 1988 as St Paul's Thameslink. The name was apparently changed to avoid confusion with St Paul's tube station, which is several hundred yards away and on the other side of St Paul's Cathedral.
City Thameslink station replaced Holborn Viaduct station, which was a terminus located close to Holborn Viaduct itself.
date of closure of HV station required