 Residents of the city had an average age of 37.1 years, younger than the 40.2 average of the district and the 38.6 average for England. Of the 17,536 households, 35 % were one-person households, 39 % were couples, 10 % were lone parents, and 15 % other. Of those aged 16 – 74 in the city, 27 % had a higher education qualification, higher than the 20 % national average.
