Cardiff vs London
Cardiff wins on purchasing power. Cardiff data analysts have £310/month more disposable income after rent than their London counterparts.
After paying rent, a data analyst in Cardiff retains £310/month more than in London — that's £3,720/year extra in purchasing power.
Cardiff vs London: what the £310/month gap means for a data analyst
On paper, Cardiff data analyst roles pay £16,000/year less than London. But take-home after tax and National Insurance tells a different story — Cardiff workers keep £2,453/month versus £3,393/month in London.
The bigger picture is after rent. Average Cardiff rent runs £900/month versus £2,150/month in London. Once housing costs are factored in, Cardiff workers have £1,553/month disposable income versus £1,243/month in London — that is £3,720/year in real spending power.
Cardiff's rent-to-income ratio of 37% compares favourably to London's 63%.
For data analysts prioritising financial freedom, Cardiff delivers significantly more disposable income despite lower gross pay.
Cost-of-living equivalence
Based on a cost-of-living index of 64 for Cardiff and 100 for London, a salary of £36,000 in Cardiff delivers equivalent purchasing power to £56,250 in London.
Income retention after all essentials
% of net monthly pay remaining after rent, transport, council tax and groceries
Everyday costs
Estimated typical prices · scaled from Numbeo 2025
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