Aller is in central Somerset, 2 miles NW of Langport and 8 miles SE of Bridgwater, on the edge of the low drained moorland of the river Parrett floodplain. Behind the village to the E rises the wooded Aller Hill. The village clusters around the junction of the A378 with a minor road that runs into the moorland, and the church is at the end of this, some 0.4 mile E of the village centre. Alongside it is Aller Court farm. The church has a nave with a N aisle and N and S porches, the latter blocked, a chancel and a W tower. It is of local Lias, cut and squared, with Hamstone dressings, and there was a major restoration in 1861-62. The S doorway is 12thc, as is the font. For the rest the S porch is 14thc and the remainder largely 15thc.