 There were 15,005 families (76.6% of all households); the average family size was 3.26.The population was spread out, with 12,290 people (21.8%) under the age of 18, 4,102 people (7.3%) aged 18 to 24, 13,409 people (23.8%) aged 25 to 44, 17,349 people (30.8%) aged 45 to 64, and 9,214 people (16.3%) who were 65 years of age or older.The median age was 43.1 years.