sentences:  Those of Hispanic or Latino origin made up 2.3% of the population.In terms of ancestry, 23.5% were German, 15.4% were American, 12.9% were Irish, and 11.2% were English.Of the 12,635 households, 31.4% had children under the age of 18 living with them, 50.5% were married couples living together, 11.4% had a female householder with no husband present, 33.1% were non-families, and 27.2% of all households were made up of individuals.