The government's stats people tell us that take home pay plus benefits averages £20,238 in London, more than 50% more than in the North East with the lowest average of £13,329 per head.
Yorkshire, Northern Ireland and Wales are also on the low side, while the South Of England, the South West and Scotland do comparatively well.
Nottingham is the very lowest at £10,702, apparently because of its large student population, with Hull next worst at £11,149.
West London tops the league at £33,323.
Here's the ONS release.