 27.10% of all households were made up of individuals and 9.50% had someone living alone who was 65 years of age or older.The average household size was 2.46 and the average family size was 2.99.21.40% of the county's population was under the age of 18, 22.10% were from age 18 to 24, 25.60% were from age 25 to 44, 18.80% were from age 45 to 64, and 12.10% were age 65 or older.