Sedge is the common name for plants of the family Cyperaceae and stream here may refer to the River Avon, which flows through the area.

[2] The Domesday Book of 1086 records 21 households and two manors: Segrete held by Durand of Gloucester, and Segrie by Drogo Fitz Ponz.

[3] Segrete became part of the estates of the Earl of Hereford, and later passed into the ownership of Bradenstoke Abbey until the Dissolution of the Monasteries.

It has a modern village hall, run jointly with Great Somerford and Startley,[8][9] a public house called The New Inn, and Seagry CofE (VC) Primary School.

It is in the area of Wiltshire Council unitary authority, which is responsible for all significant local government functions.

[13] The church was rebuilt in 1849 on the same plan as the 12th or 13th century building[5] by one of the architects in the Hakewill family, in squared rubble stone with a west bellcote.