Allen, St, a parish in Cornwall, on the Allen rivulet, 4 1/2 miles N by W of Truro station on the G.W.R. Post town, Truro, which is the telegraph office; money order office, Newlyn East. Acreage, 3506; population, 468. Many of the inhabitants are miners. An old edifice, now a farmhouse, was the seat of the Bevills. An ancient camp, with triple ditch, occurs at Gwarnike. The living is a rectory in the diocese of Truro; net value, £174. Patron, the Bishop of Truro. The church is good. The township of Zelah is about 2 miles from St Allen, on the main road to Truro; it consists of a straggling village extending a distance of 1 1/2 mile. There are Wesleyan and Bible Christian chapels here, and a mission church was erected in 1883.