29.0% of the population were under the age of 19; 58% were between the ages of 19 and 64; and 13.0% were 65 years of age or older. these tones have a long history in music theory and scientific research, and are still the object of disagreement and debate. the average household size was 2.45, and the average family size was 3.00.

in the county, the population was spread out, with 25.60% under the age of 18, 9.40% from 18 to 24, 31.50% from 25 to 44, 22.70% from 45 to 64, and 10.80% who were 65 years of age or older. 