 The average household size was 2.53 and the average family size was 2.99.In the county, the population was spread out with 77.7% 18 years of age and over; 23.2% from 25 to 44, 26.8% from 45 to 64, and 19.9% who were 65 years of age or older.The median age was 42.4 years.