New York metropolitan area contains the administrative territorial entity Essex County
Statistical history
The U.S. Census Bureau first designated metropolitan areas in 1950 as standard metropolitan areas (SMAs). The "New York–Northeastern NJ SMA" was defined to include 17 counties: 9 in New York (the five boroughs of New York City, Nassau, Suffolk, Westchester, and Rockland) and 8 in New Jersey (Bergen, Hudson, Passaic, Essex, Union, Morris, Somerset, and Middlesex). In 1960, the metropolitan area standards were modified and renamed standard metropolitan statistical areas (SMSAs). The new standards resulted in the splitting of the former SMA into several pieces: the nine New York counties became the "New York SMSA"; three of the New Jersey counties (Essex, Union, and Morris) became the "Newark SMSA"; two other New Jersey counties (Bergen and Passaic) became the "Paterson–Passaic–Clifton SMSA"; Hudson County was designated the "Jersey City SMSA"; and Middlesex and Somerset counties lost their metropolitan status. In 1973, a new set of metropolitan area standards resulted in further changes: Nassau and Suffolk counties were split off as their own SMSA ("Nassau–Suffolk SMSA"); Bergen County (originally part of the Paterson–Clifton–Passaic SMSA) was transferred to the New York SMSA; the New York SMSA also received Putnam County (previously non-metropolitan); Somerset County was added to the Newark SMSA; and two new SMSAs, the "New Brunswick–Perth Amboy–Sayreville SMSA" (Middlesex County) and "Long Branch–Asbury Park SMSA" (Monmouth County), were established. In 1983, the concept of a consolidated metropolitan statistical area (CMSA) was first implemented. A CMSA consisted of several primary metropolitan statistical areas (PMSAs), which were individual employment centers within a wider labor market area. The "New York–Northern New Jersey–Long Island CMSA" consisted of 12 PMSAs.
Seven PMSAs were based on the original 1950 New York SMA that were split up: New York, Bergen–Passaic, Jersey City, Middlesex–Somerset–Hunterdon (Hunterdon added for the first time), Monmouth–Ocean (Ocean added for the first time), Nassau–Suffolk, and Newark (Sussex added for the first time). One additional PMSA was the Orange County PMSA (previously the Newburgh–Middletown SMSA). The other four PMSAs were former SMSAs in Connecticut: Bridgeport, Stamford, Norwalk, and Danbury. In 1993, four PMSAs were added to the New York–Northern New Jersey–Long Island CMSA: Trenton PMSA (Mercer County), Dutchess County PMSA, Waterbury PMSA, and New Haven PMSA. Several new counties were also added to the CMSA: Sussex, Warren, and Pike. The CMSA model was originally utilized for tabulating data from the 2000 census. In 2003, a new set of standards was established using the Core Based Statistical Area (CBSA) model was adopted and remains in use as of 2010. The CBSA model resulted in the splitting up of the old CMSA into several metropolitan statistical areas: New York–Northern New Jersey–Long Island, Poughkeepsie–Newburgh–Middletown, Trenton–Princeton, Bridgeport–Stamford–Norwalk (includes Danbury), and New Haven–Milford (includes Waterbury). In 2013, the Census Bureau added Carbon, Lehigh, Northampton, and Monroe counties in Pennsylvania, and Warren County, New Jersey (encompassing collectively the Allentown-Bethlehem-Easton, PA-NJ MSA and the East Stroudsburg, PA MSA), to the Combined Statistical Area, and assimilated Poughkeepsie–Newburgh–Middletown into the larger New York–Northern New Jersey–Long Island–NY–NJ–PA MSA. In 2018, the Allentown-Bethlehem-Easton, PA-NJ MSA was removed from the Combined Statistical Area.
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