 The average household size was 2.76 and the average family size was 3.11.In the county, the population was spread out with 25.10% under the age of 18, 13.60% from 18 to 24, 33.30% from 25 to 44, 20.80% from 45 to 64, and 7.30% who were 65 years of age or older.The median age was 32 years.