 31.0% of households were one person and 16.9% were one person aged 65 or older.The average household size was 2.46 and the average family size was 3.12.In the city the population was spread out with 26.4% under the age of 18, 8.0% from 18 to 24, 25.8% from 25 to 44, 19.8% from 45 to 64, and 20.1% 65 or older.