sentences:  The average household size was 2.51 and the average family size was 3.05.In the county, the population was spread out with 24.40% under the age of 18, 9.20% from 18 to 24, 30.70% from 25 to 44, 21.90% from 45 to 64, and 13.80% who were 65 years of age or older.The median age was 38 years.