The Union of Catholic Mothers is active in sixteen of the Dioceses in England. Each Diocese has its own Diocesan President, Secretary and Treasurer and a nominated Spiritual Advisor, allocated by the Bishop of the Diocese, to give spiritual help and support. Most diocese also have a study, welfare, media and justice and peace officer.
Each diocese meets with their foundations between two and four times a year depending on circumstances and distances to impart the information received by them from the National Officers, in order for them to pass this information on to the foundation members. Each Diocese is allocated a Liaison Officer from the National Committee as a link between the levels and is there to offer help, support and guidance should it be needed.