sentences:  The average household size was 2.59 and the average family size was 3.11.In the city, the population was spread out with 29.5% under the age of 18, 9.8% from 18 to 24, 34.2% from 25 to 44, 17.9% from 45 to 64, and 8.5% who were 65 years of age or older.The median age was 31 years.