 29.10% of all households were made up of individuals and 14.20% had someone living alone who was 65 years of age or older.The average household size was 2.43 and the average family size was 2.99.The county population contained 21.60% under the age of 18, 20.80% from 18 to 24, 21.60% from 25 to 44, 19.00% from 45 to 64, and 17.00% who were 65 years of age or older.