 The average household size was 2.56 and the average family size was 3.14.The county population contained 27.10% under the age of 18, 12.20% from 18 to 24, 31.00% from 25 to 44, 18.70% from 45 to 64, and 11.00% who were 65 years of age or older.The median age was 32 years.