sentences:  The average household size was 2.66 and the average family size was 3.11.In the city, the population was spread out with 32.1% under the age of 18, 9.6% from 18 to 24, 28.9% from 25 to 44, 18.6% from 45 to 64, and 10.8% who were 65 years of age or older.The median age was 31 years.