Southern Water provides water supply and wastewater treatment services across Kent, Sussex, Hampshire and the Isle of Wight. The map below shows our area of operation, as well as the areas in which other water companies provide the water supply.

If you are unsure if  your property is within Southern Water's supply area, enter your postcode in the 'Where I live' section on the left hand side of the page.

Other water supply companies in Southern Water's region:

For information about other water companies in our region see the Ofwat* website.

* Southern Water is not responsible for content on external websites.