 Those of Hispanic or Latino origin made up 0.9% of the population.In terms of ancestry, 17.6% were German, 16.5% were American, 15.3% were Irish, and 9.8% were English.Of the 11,147 households, 33.5% had children under the age of 18 living with them, 52.2% were married couples living together, 12.1% had a female householder with no husband present, 30.1% were non-families, and 25.9% of all households were made up of individuals.