 21.1% of residents were under the age of 18; 8.6% were between the ages of 18 and 24; 23.8% were from 25 to 44; 27.1% were from 45 to 64; and 19.2% were 65 years of age or older.The gender makeup of the city was 47.1% male and 52.9% female.As of the census of 2000, there were 11,211 people, 4,906 households, and 3,022 families residing in the city.