 23.60% of all households were made up of individuals and 6.50% had someone living alone who was 65 years of age or older.The average household size was 2.47 and the average family size was 2.91.The county population contained 25.80% under the age of 18, 6.00% from 18 to 24, 27.50% from 25 to 44, 28.70% from 45 to 64, and 12.00% who were 65 years of age or older.