sentences:  The average household size was 2.45 and the average family size was 2.90.In the county, the population was spread out with 22.80% under the age of 18, 8.20% from 18 to 24, 29.90% from 25 to 44, 24.90% from 45 to 64, and 14.30% who were 65 years of age or older.The median age was 38 years.