The Archdiocese of Liverpool extends from the Mersey to the Ribble and encompasses parts of Lancashire, north Cheshire, Greater Manchester and the Isle of Man. The Catholic population of this area is 574,150 (November 2013) and mass attendance figures stand at 54,772. It is divided into 24 separate administrative or pastoral areas which are each overseen by a Dean and a sub-Dean:
- Liverpool North
- Liverpool South
- Woolton and Halewood
- Huyton
- Stoneycroft
- Croxteth and Walton
- Bootle Litherland
- Liverpool Central
- Crosby
- Southport
- Leyland
- Chorley
- Upholland
- Ormskirk and Maghull
- Kirkby
- Prescot
- St Helens
- Widnes
- Warrington
- Ashton-in-Makerfield
- Leigh
- Wigan
- Isle of Man.