sentences:  The average household size was 2.36 and the average family size was 2.94.In the county, the population was spread out with 20.40% under the age of 18, 7.90% from 18 to 24, 30.70% from 25 to 44, 24.60% from 45 to 64, and 16.40% who were 65 years of age or older.The median age was 40 years.