 28.3% of residents were under the age of 18; 6% were between the ages of 18 and 24; 27.1% were from 25 to 44; 28.7% were from 45 to 64; and 10% were 65 years of age or older.The gender makeup of the city was 49.8% male and 50.2% female.As of the census of 2000, there were 12,855 people, 4,752 households, and 3,630 families living in the city.