 Those of Hispanic or Latino origin made up 4.6% of the population.In terms of ancestry, 22.6% were German, 16.5% were American, 14.4% were Irish, and 12.1% were English.Of the 14,979 households, 33.0% had children under the age of 18 living with them, 53.2% were married couples living together, 10.4% had a female householder with no husband present, 31.0% were non-families, and 25.9% of all households were made up of individuals.