 The five largest ancestries include Irish (13.6%), Italian (9.2%), German (8.1%), Polish (4.3%), and English (2.9%).Of the 590,071 households, 27.6% had children under the age of 18 living with them, 32.1% were married couples living together, 22.3% had a female householder with no husband present, and 40.3% were non-families.33.8% of all households were made up of individuals and 11.9% had someone living alone who was 65 years of age or older.