The internal dimensions of the church are:- nave 22 metres by 12,2 metres; chancel 9.2 metres by 4.9 metres.
Piers circular and multiangular alternatively.
The pulpit made of stone, is on the north side of the chancel arch, and the reading desk is on the south side.
The pews are open and uniform, with finials at the end.
There are fine well executed stained glass windows, containing the Crucifixion, the Resurrection, and the Ascension with sacred devices and monograms.
The window in the Musgrave Chapel contains the arms of the Musgrave family and others.
It was given by Sir George Musgrave of Eden Hall, and Sir James Musgrave of Barnsley Park, Gloucester.
There is also a window in the south side of the chancel, to the memory of the Rev. E. Thompson, vicar of the parish.
In time additional items appeared.
In 1875, a local resident named Sarah Langcake, dedicated a new organ at a cost of £200.
A year Later, Mrs Powell, the widow of an earlier vicar, paid £120 for a clock to be placed in the tower, as a memorial to her late husband.
She also paid for one of the bells, when the parishioners, the children, and Sir Wilfrid and Lady Lawson collaborated in 1898, to provide a peel of eight bells at a cost of £598.
In 1899 a sum of £220 was paid for providing a heating system for the church.

The terrier or inventory of church properties of 1749, which was signed by John Brisco, vicar, gives the following, one silver chalice with paten; and one silver cup with paten.
There is also a modern set of Newcastle silver plate, consisting of a flagon, cup and paten, all dated 1840.
The internal dimensions of the church are:- nave 22 metres by 12,2 metres; chancel 9.2 metres by 4.9 metres. Piers circular and multiangular alternatively. The pulpit made of stone, is on the north side of the chancel arch, and the reading desk is on the south side. The pews are open and uniform, with finials at the end. There are fine well executed stained glass windows, containing the Crucifixion, the Resurrection, and the Ascension with sacred devices and monograms. The window in the Musgrave Chapel contains the arms of the Musgrave family and others. It was given by Sir George Musgrave of Eden Hall, and Sir James Musgrave of Barnsley Park, Gloucester. There is also a window in the south side of the chancel, to the memory of the Rev. E. Thompson, vicar of the parish. In time additional items appeared. In 1875, a local resident named Sarah Langcake, dedicated a new organ at a cost of £200. A year Later, Mrs Powell, the widow of an earlier vicar, paid £120 for a clock to be placed in the tower, as a memorial to her late husband. She also paid for one of the bells, when the parishioners, the children, and Sir Wilfrid and Lady Lawson collaborated in 1898, to provide a peel of eight bells at a cost of £598. In 1899 a sum of £220 was paid for providing a heating system for the church.
The terrier or inventory of church properties of 1749, which was signed by John Brisco, vicar, gives the following, one silver chalice with paten; and one silver cup with paten. There is also a modern set of Newcastle silver plate, consisting of a flagon, cup and paten, all dated 1840.
St. Kentigern's Church, Aspatria