 30.4% of all households were made up of individuals and 12.6% had someone living alone who was 65 years of age or older.The average household size was 2.26 and the average family size was 2.77.The county population contained 21.0% under the age of 18, 6.5% from 18 to 24, 20.8% from 25 to 44, 32.7% from 45 to 64, and 19.1% who were 65 years of age or older.