Yorkshire Water customers will see bills rise by 3.3 per cent over the next year, it was announced today.
It means the average family will pay £368 for water and sewerage in 2013-14 - a rise of £12.
The increase is slightly below the UK average of 3.5 per cent.
Householders in the Wessex Water area, in the south of England, face the highest bills - £478 on average.
The cheapest region is Severn Trent, at £335.
The new charges will vary for households depending on whether they have a water meter.
Regina Finn, chief executive of the water industry regulator Ofwat, said the increases were driven by inflation.
She said: "Back in 2009, companies wanted bills rises of 10 per cent above inflation. That didn't chime with what customers told us they wanted, so we said they could only increase bills in line with inflation.
"We understand that there is huge pressure on household incomes, and any rise is unwelcome. Inflation is driving these increases."
"We will make sure customers get value for money and if companies fall short in delivering their investment promises, we will take action.
"In the past seven years, we have made companies pay out around £550m where they have underperformed."
The increased bills will help pay for an nationwide investment programme worth about £25bn between 2010 and 2015, Ofwat added.
