 32.50% of all households were made up of individuals and 10.80% had someone living alone who was 65 years of age or older.The average household size was 2.17 and the average family size was 2.73.The county population contained 20.40% under the age of 18, 5.40% from 18 to 24, 25.80% from 25 to 44, 31.20% from 45 to 64, and 17.20% who were 65 years of age or older.