As of the census[REF] of 2000, there were 20,824 people, 9,000 households, and 6,047 families residing in the county.
In the county, the population was spread out with 22.7% under the age of 18, 6.0% from 18 to 24, 22.6% from 25 to 44, 30.8% from 45 to 64, and 17.9% who were 65 years of age or older.