 5.2% were Hispanic or Latino (of any race).7.5% were of German, 6.8% Polish and 5.2% Irish ancestry.There were 702,749 households, out of which 33.1% had children under the age of 18 living with them, 37.4% were husband and wife families, 20.7% had a female householder with no husband present, 35.9% were non-families, and 30.7% were made up of individuals.