After the Reformation, St Aidan's became the parish church for the village but its maintenance was neglected; by 1600, it was in poor condition.

[5][2] The church's crypt holds the remains of 110 individuals who died in the 7th and 8th century; they had originally been buried in the castle's Bowl Hole graveyard.

[6] An interpretive display and digital ossuary are also available for visitors as "Accessing Aidan"; they are managed by the Bamburgh Bones consortium: the Bamburgh Heritage Trust, St. Aidan's Parochial Church Council, Northumberland Coast AONB Partnership and Northumberland County Council.

The north aisle contains an effigy of local heroine Grace Darling dating from 1844 by Charles Raymond Smith.

This formed part of the original Monument to Grace Darling in the churchyard but was later replaced due to deterioration of the stonework.