 The average household size was 2.74 and the average family size was 3.03.In the county, the population was spread out with 24.00% under the age of 18, 7.30% from 18 to 24, 34.70% from 25 to 44, 25.60% from 45 to 64, and 8.40% who were 65 years of age or older.The median age was 37 years.