 17.5% of households were one person, and 7.2% were one person aged 65 or older.The average household size was 2.98 and the average family size was 3.40.In the city the population was spread out, with 34.4% under the age of 18, 6.6% from 18 to 24, 37.5% from 25 to 44, 15.9% from 45 to 64, and 5.7% 65 or older.