 The average household size was 2.57 and the average family size was 2.94.In the county, the population was spread out with 25.50% under the age of 18, 7.70% from 18 to 24, 30.20% from 25 to 44, 24.20% from 45 to 64, and 12.50% who were 65 years of age or older.The median age was 37 years.