 16.60% of all households were made up of individuals and 5.60% had someone living alone who was 65 years of age or older.The average household size was 2.65 and the average family size was 2.97.The county population contained 25.00% under the age of 18, 5.90% from 18 to 24, 32.00% from 25 to 44, 27.70% from 45 to 64, and 9.40% who were 65 years of age or older.