 20.50% of all households were made up of individuals and 10.10% had someone living alone who was 65 years of age or older.The average household size was 2.92 and the average family size was 3.43.The county population contained 32.60% under the age of 18, 7.80% from 18 to 24, 23.10% from 25 to 44, 22.40% from 45 to 64, and 14.10% who were 65 years of age or older.