People living in the Dublin region had the highest average disposable income of any of the eight regional authority areas across the country in 2013.
Latest figures from the Central Statistics Office show the figure for Dublin was €20,885 - 11.6% higher than the State average of €18,707.
Of the remaining seven regions, only the Mid West, at €19,168 in 2013 had an average disposable income per person higher than the State average (2.5%).
The Border region, with €16,610, and the Midland region, with €17,052, had the lowest disposable incomes all of the regions in 2013, at 11% and 9% below the State average.
The CSO data also indicates the gap between the maximum and minimum value of disposable income per person per region increased from €4,127 in 2012 to €4,275 in 2013 due to Dublin regional incomes decreasing by €187 (0.9%), while those of the lowest region, Border, decreased more by €335 (1.9%).
Dublin remained the only region with higher per capita disposable income than the State average during the entire 2004-2013 period while the Midland, Border and West regions have continuously earned less than the State average.
From 2004 the divergence in income between the regions and Dublin was at its lowest in 2010 but continued to widen in 2011, 2012, and 2013.
On a county-by-county basis, Dublin, Limerick and Cork were the only counties where per capita disposable income exceeded the state average in 2013.
At the other end of the spectrum, some counties have never had per capita disposable income greater than the State average during the entire period 2004 to 2013.
Data from 2014 onwards is not included, as the CSO deems it to be of insufficient robustness at this point.
