According to the Census Bureau, New York City is at the center of a metro region consisting of New York City plus the following: Fairfield County CT, New Haven County CT, parts of Litchfield and Middlesex Counties CT, Dutchess County NY, Bergen County NJ, Passaic County NJ, Hudson County NJ, Hunterdon County NJ, Middlesex County NJ, Somerset County NJ, Monmouth County NJ, Ocean County NJ, Essex County NJ, Morris County NJ, Sussex County NJ, Union County NJ, Warren County NJ, Mercer County NJ, Nassau County NY, Suffolk County NY, Putnam County NY, Rockland County NY, Westchester County NY, Orange County NY, and Pike County PA. This category includes sites relevant to this large region, but it focuses primarily on those portions of the metro region that lie within a typical commuting distance of New York City.