The village of Warnham is located within the county of West Sussex.
The Parish Church (a Grade I listed building) is called Warnham: St Margaret and serves the parish of Warnham: St Margaret and the benefice of Warnham and belongs to the diocese of Chichester.
Warnham is situated in the South East (England) region of the UK and is governed by Horsham, council.
The village of Warnham is in the West Sussex (North East) region of Surrey, East and West Sussex within South East (England).