 The county population contained 18.7% were under the age of 18, 14.8% from 18 to 24, 23.0% from 25 to 44, 28.9% from 45 to 64, and 14.7% were 65 years of age or older.The median age was 39.4 years.The population is 50.5% male and 49.5% female.