 28.50% of all households were made up of individuals and 15.10% had someone living alone who was 65 years of age or older.The average household size was 2.48 and the average family size was 3.05.The county population contained 26.50% under the age of 18, 6.60% from 18 to 24, 25.30% from 25 to 44, 21.70% from 45 to 64, and 19.80% who were 65 years of age or older.