 29.11% of all households were made up of individuals and 13.62% had someone living alone who was 65 years of age or older.The average household size was 2.34 and the average family size was 2.91.The county population contained 23.61% under the age of 20, 3.78% from 20 to 24, 24.93% from 25 to 44, 28.71% from 45 to 64, and 18.98% who were 65 years of age or older.