|- 1974||11,831 acres (47.88 km2)|
|- Succeeded by||South Gloucestershire|
|- Motto||Vigilando Custodimus (We are the watchful custodians)|
It was formed on 1 April 1974, under the Local Government Act 1972, by the merger of the Kingswood and Mangotsfield urban districts with Warmley Rural District from the administrative county of Gloucestershire. In 1987 the district was granted borough status.
Following a review by the Local Government Commission for England, both the County of Avon and Borough of Kingswood were abolished on 1 April 1996. Kingswood was merged with the neighbouring Northavon District to form the unitary authority of South Gloucestershire.
- Local government in England and Wales: A Guide to the New System. London: HMSO. 1974. p. 28. ISBN 978-0-11-750847-7.
- Registrar General's annual estimated figure mid 1973
- OPCS Key Population and Vital Statistics 1992
- "The Avon (Structural Change) Order 1995". Office of Public Sector Information. 1995. Retrieved 12 January 2009.