 Those of Hispanic or Latino origin made up 1.6% of the population.In terms of ancestry, 34.1% were German, 13.3% were American, 12.9% were Irish, and 9.0% were English.Of the 42,638 households, 32.5% had children under the age of 18 living with them, 57.1% were married couples living together, 9.2% had a female householder with no husband present, 29.5% were non-families, and 25.1% of all households were made up of individuals.