 For every 100 females, there were 96.3 males.For every 100 females age 18 and over, there were 93.9 males.There were 18,493 housing units at an average density of 1,114.8 per square mile (430.4/km2), of which 10,208 (58.4%) were owner-occupied, and 7,284 (41.6%) were occupied by renters.