The church has/had a graveyard.
There is a monument with just a few tomb style graves to the front of the church also there is a graveyard to the rear and one on St, Mary's Road :-
1833 the existing graveyard was nearly full and was extended by using land between the school and the chapel. This land also filled up quickly. The churchyard was extended by using land down St. Mary's Road. This land was given to the chapel for use as a burial ground when Greystone Common (or sometimes known as Heath) Penketh when an award for enclosure was made in 1868 and confirmed in 1869. The first burials took place in 1881. Most of this land was compulsory purchased in 1969 by the Education Authorities for use as a playing field for Penketh High-School. The Cemetery on St Marys Road Cemetery is still used for internment today and within the cemetery is a War memorial.
The Graveyard in St Mary's Road is now a closed cemetery only allowing burials in existing plots where space allows. There is a "Friends of St Mary's Cemetery" to try to restore respect to this little oasis in a built up area.