 Those of Hispanic or Latino origin made up 15.7% of the population.In terms of ancestry, 20.8% were German, 12.4% were English, 12.1% were Irish, and 3.2% were American.Of the 200,934 households, 36.0% had children under the age of 18 living with them, 52.2% were married couples living together, 10.1% had a female householder with no husband present, 33.2% were non-families, and 25.1% of all households were made up of individuals.