[1] It is situated on the A375 road and the River Sid, which rises at Crowpits Covert (OSGB36 grid reference SY138963) and runs for 6 miles (10 km) to Lyme Bay at Sidmouth.

Above the village is Sidbury Castle, the site of an Iron Age hill fort.

Sidbury is mentioned in the Domesday Book as the manor of Sideberia, held by Bishop Osbern of Exeter.

A small hamlet of Sidbury in the Eastern Cape province of South Africa, was founded by Lt. Richard Daniell, R.N.

He had been native of this Devon village and was leader of Daniell party of 1820 Settlers to South Africa.