Oxfordshire is served by 1 water company, and a ban is set per company, not per county. The county is genuinely the wrong unit of answer: your postcode decides.
Thames Water could not be confirmed, so check with them directly. Which of these applies at your address depends on which one bills you.
We could not confirm Thames Water’s current status from their own page, so we are not asserting a restriction. Check with your supplier before using a hosepipe.
Check with your supplier
Areas covered: The whole Thames Water drinking-water supply area, covering London, the Thames Valley and the home counties. Customers Thames Water serves for wastewater only, and customers supplied with drinking water by another company, are not affected.
TWThames Water·Status checked yesterday·page dated 24 July 2026