The village of Charlton-on-Otmoor is located within the county of Oxfordshire.
The Parish Church (a Grade I listed building) is called Charlton-on-Otmoor: St Mary and serves the parish of Charlton-on-Otmoor and the benefice of The Ray Valley and belongs to the diocese of Oxford.
Charlton-on-Otmoor is situated in the South East (England) region of the UK and is governed by Cherwell, council.
The village of Charlton-on-Otmoor is in the Oxfordshire region of Berkshire, Buckinghamshire and Oxfordshire within South East (England).