sentences:  Those of Hispanic or Latino origin made up 2.9% of the population.In terms of ancestry, 46.6% were German, 12.5% were Irish, 10.0% were English, and 8.0% were American.Of the 19,845 households, 28.6% had children under the age of 18 living with them, 50.3% were married couples living together, 11.2% had a female householder with no husband present, 34.4% were non-families, and 29.7% of all households were made up of individuals.