the county had a population of 139,718. The median age was 31.0 years. 16.6% of residents were under the age of 18 and 14.6% of residents were 65 years of age or older. For every 100 females there were 99.8 males, and for every 100 females age 18 and over there were 98.1 males age 18 and over.

The racial makeup of the county was 81.9% White, 3.7% Black or African American, 0.2% American Indian and Alaska Native,