 24.80% of all households were made up of individuals and 9.50% had someone living alone who was 65 years of age or older.The average household size was 2.63 and the average family size was 3.13.The county population contained 28.70% under the age of 18, 13.90% from 18 to 24, 25.20% from 25 to 44, 20.50% from 45 to 64, and 11.70% who were 65 years of age or older.