The Census reported that 20,353 people (99.8% of the population) lived in households, 38 (0.2%) lived in non-institutionalized group quarters, and 11 (0.1%) were institutionalized.
There were 7,542 housing units at an average density of 349.6 per square mile (135.0/km²), of which 6,414 (89.1%) were owner-occupied, and 788 (10.9%) were occupied by renters.