 The population of foreign-born residents increased from about 71,300 in 1990 to 171,000 by 2009 estimates.There were 325,601 households, out of which 37.00% had children under the age of 18 living with them, 60.90% were married couples living together, 7.90% had a female householder with no husband present and 28.00% were non-families.22.90% of all households were made up of individuals, and 6.80% had someone living alone who was 65 years of age or older.