 21.1% of residents were under the age of 18; 5.5% were between the ages of 18 and 24; 17.6% were from 25 to 44; 36% were from 45 to 64; and 20% were 65 years of age or older.The gender makeup of the city was 51.3% male and 48.7% female.As of the census of 2000, there were 597 people, 224 households, and 191 families living in the city.