Information on income by parliamentary constituency is only available for taxpayers. The mean income of taxpayers in the Vale of Clwyd for 2002-03 to 2006-07 can be found in table 3.15 “Income and tax by Parliamentary Constituency” and for the regions of the UK for 1999-2000 to 2006-07 in table 3.13 “Income and tax by county and region” available at:
The estimates shown in the tables are based on the Survey of Personal Incomes of which 2006-07 is the latest available.
Estimates of mean income of taxpayers by parliamentary constituency for earlier years are not available as the sample size of the survey was too small to give reliable results. However the mean income of taxpayers by region for earlier years is either shown, or can be derived from information shown, in Inland Revenue Statistics, copies of which are in the Library.