Bergen County is a suburb of New York City with approximately 900,000 residents. It is part of the New Jersey Metropolitan area. Bergen County is currently the most populous County in the state of New Jersey. There are 56 boroughs, 9 townships, 3 cities and 2 villages. In the Forbes magazine 2006 edition which ranked the most expensive zip codes in the United States, 12 Bergen County municipalities were represented on the list. Bergen County has a total area of approximately 250 square miles of which 95% is land and 5% water.