City Sector Model

Urban cores are much celebrated but in reality most of the population living in functional urban cores is strongly concentrated in just a handful of major metropolitan areas in the United States. This conclusion is based on an analysis using the City Sector Model, which uses functional characteristics, rather than municipal jurisdictions, to analyze urban core and suburban components of metropolitan areas.  read more »

The very centers of urban cores in many major metropolitan areas are experiencing a resurgence of residential development, including new construction in volumes not seen for decades. There is a general impression, put forward by retro–urbanists (Note 1) and various press outlets that the urban core resurgence reflects a change in the living preferences of younger people – today's Millennials – who they claim are rejecting the suburban and exurban residential choices of their parents and grandparents.  read more »

Much attention has been given the increase in transit use in America. In context, the gains have been small, and very concentrated (see: No Fundamental Shift to Transit, Not Even a Shift). Much of the gain has been in the urban cores, which house only 14 percent of metropolitan area population.  read more »

The major metropolitan areas of the United States experienced virtually all of their overall growth in suburban and exurban areas between 2000 and 2010. This is the conclusion of an analysis of the functional Pre-Auto Urban Cores and functional suburban and exurban areas using the Demographia City Sector Model.  read more »

The 52 major metropolitan areas of the United States are, in aggregate, approximately 86 percent suburban or exurban in function. This is the conclusion from our new City Sector Model, which divides all major metropolitan zip codes into four functional categories, based on urban form, population density and urban travel behavior. The categories are (1) Pre-Auto Urban Core, (2) Auto Suburban: Earlier, (3) Auto Suburban: Later and (4) Auto Exurban.  read more »