In 1841, 12% of Trafford's population was middle class compared to 14% in England and Wales; this increased to 21% in 1931 (15% nationally) and 55% in 2001 (48% nationally). From 1841 to 1951, the working class population of Trafford and across the country was in decline, falling steadily from 43% to 18% (36% to 29% nationally). It has since increased slightly, up to 27% (26% nationwide).