Figures from the Office for National Statistics show variations in disposable incomes.
In parts of the South Wales Valleys it's £13,081, that's £2,953 less than the UK average of £16,034.
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The Liberal Democrats will meet later today in Pentwyn for the launch of the party's general election manifesto.
Plaid Cymru will today launch its election manifesto in Bangor ahead of the general election.
A largely cloudy start to the day with some brighter breaks but blustery showers too. Winds will remain strong into the afternoon.