 32.2% 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 2.38 and the average family size was 3.01.The county population contained 20.6% under the age of 18, 20.6% from 18 to 24, 20.3% from 25 to 44, 23.6% from 45 to 64, and 15% who were 65 years of age or older.