 23.60% of all households were made up of individuals and 6.90% had someone living alone who was 65 years of age or older.The average household size was 2.62 and the average family size was 3.11.The county population contained 28.90% under the age of 18, 10.10% from 18 to 24, 29.30% from 25 to 44, 23.70% from 45 to 64, and 8.00% who were 65 years of age or older.