In the county, the population was spread out with 26.80% under the age of 18, 8.30% from 18 to 24, 27.50% from 25 to 44, 24.10% from 45 to 64, and 13.30% who were 65 years of age or older.
Of the 40,244 households, 31.8% had children under the age of 18 living with them, 50.2% were married couples living together, 11.8% had a female householder with no husband present, 32.3% were non-families, and 25.8% of all households were made up of individuals.