 27.50% of all households were made up of individuals and 15.40% had someone living alone who was 65 years of age or older.The average household size was 2.29 and the average family size was 2.75.The county population contained 20.30% under the age of 18, 5.90% from 18 to 24, 20.90% from 25 to 44, 29.10% from 45 to 64, and 23.90% who were 65 years of age or older.