This bar chart shows the 323 local authorities for which there is statistically significant data on the median gross annual wage for 2017. Please see the Methodology section below for an explantion of why the median is used. If you cannot find a local authority in this chart it is because it has been omitted as it is not possible to represent the typical income.
Data was taken from the ONS website and can be found here. The median is the value at which 50% of the population lies on either side. The median has been used rather than the mean as it is a better representation of the incomes of most people in that area. This is due to the presence of a relatively small number of much higher incomes that skew the mean to a higher value that is not necessarily representative of typical incomes. Some values are unavailable for male and female income in some local authorities and other local authorities are completely unavailable. The number of omitted local authorities is 23. This is because the ONS data supressed these values as their coefficient of variation was above 20% and thus were not judged as reliable estimates of the typical income in the respective category. The coefficient of variation, also knows as the relative standard deviation, is the ratio of the standard error of an estimate to the estimate itself.
List of omitted local authorities:
Barrow-in-Furness, South Lakeland, Pendle, Rossendale, Wyre, Craven, Rutland, North East Derbyshire, Corby, South Northamptonshire, Brentwood, Harrow, Redbridge, Hastings, Rother, Ashford, Mole Valley, East Dorset, North Dorset, Purbeck, Cotswold, West Somerset, and Blaenau Gwent,