 The average household size was 2.82.There were 20,594 families (70.5% of all households); the average family size was 3.30.The population was spread out with 15,707 people (18.9%) under the age of 18, 7,876 people (9.5%) aged 18 to 24, 24,907 people (30.0%) aged 25 to 44, 22,687 people (27.3%) aged 45 to 64, and 11,912 people (14.3%) who were 65 years of age or older.