The median income for a household in the county was $36,321, and the median income for a family was $42,235.
Of the 15,472 households, 34.4% had children under the age of 18 living with them, 57.8% were married couples living together, 10.5% had a female householder with no husband present, 26.9% were non-families, and 23.2% of all households were made up of individuals.