sentences:  Those of Hispanic or Latino origin made up 1.0% of the population.In terms of ancestry, 46.5% were German, 19.2% were Irish, 11.4% were English, and 7.8% were American.Of the 18,743 households, 35.1% had children under the age of 18 living with them, 58.5% were married couples living together, 10.0% had a female householder with no husband present, 26.5% were non-families, and 22.0% of all households were made up of individuals.