 23.80% of all households were made up of individuals and 6.07% had someone living alone who was 65 years of age or older.The average household size was 2.59 and the average family size was 3.11.The county population contained 27.30% under the age of 18, 10.30% from 18 to 24, 32.50% from 25 to 44, 20.80% from 45 to 64, and 9.10% who were 65 years of age or older.