A metropolitan area or metro is a region consisting of a densely populated urban agglomeration and its surrounding territories; which share industries, commercial areas, transport network, infrastruct
Satellite image of the New York metropolitan area, the largest metropolitan area in the United States and one of the largest in the world, with Long Island in the east and Manhattan at the center of the densest part of the image
The Melbourne metropolitan area in Australia seen at night from the International Space Station
Greater São Paulo in Brazil seen at night from the International Space Station
A suburb is an area within a metropolitan area which is predominantly residential and within commuting distance of a large city. Suburbs can have their own political or legal jurisdictions, especially
Nassau County, New York, on Long Island (top) is emblematic of the continuous sprawl making up the inner suburbs of New York City, in contrast with Monroe Township, Middlesex County, New Jersey (below), characteristic of an outer suburb, or exurb, of New York City, with a lower population density.
Suburban housing in the regional city of Griffith, New South Wales in Australia
Suburban areas in the United States. Bellevue, Washington (top left) Orchard Park, New York (top right) Fremont, California (bottom left), and Dulles, Virginia (bottom right)
Upper middle class suburban housing in Swords, County Dublin in Ireland