The 1851 census recorded 138 people in the village, 75 males, 63 females and a parish area of 1,590 acres (640 ha).

It covers an extensive tract of land, of which a large portion is marshy, some part hilly, and the remainder in a fair state of cultivation.

In 1790, an act of parliament was obtained for more effectually embanking the marshes called Malltraeth and Corsddeuga, under the provisions of which 230 acres (93 ha) were allotted to the several proprietors of land in this parish.

The soil is in general fertile, and the lower grounds afford excellent pasturage for cattle.

The surrounding scenery is varied, while the higher grounds afford vistas over the adjacent countryside.

[5][6] The lintel of the church's northern doorway consists of a tomb-stone 6 feet (1.8 m) long, bearing a poorly-incised cross, plain and with the arms gradually widened.

[11] The school subsequently went on public sale in 2021 for redevelopment or conversion subject to statutory consents.

[8] The village of Llangaffo is referenced in an 1841 published biography by William Jones titled Character of the Welsh as a Nation.