City Sector Model

California: Most Urban and Densest Urban State

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The 2020 Census reveals California to have both the highest urban population density and the highest urbanization share of total population among the states.  read more »

California Dominates Urban Area Density Rankings

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The newly released Census Bureau urban area reveals all 10 or the densest urban areas are in California, as well as 39 of the densest 50, and 70 of the 100.  read more »

The Rural Character of Canada's Metropolitan Areas (CMAs)

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There is considerable confusion with respect to the terms of urban geography, not only among the population in general, but also among the media, and sadly, among academics. Perhaps the greatest confusion is between the terms “metropolitan area” and “urban area.”  read more »

How New York Can Survive

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In 1912, James Weldon Johnson wrote that New York City is “the most fatally fascinating place in America”. The city, he explained, “sits like a great witch at the gate of the country, showing her alluring white face and hiding her crooked hands and feet under the folds of her wide garments — constantly enticing thousands from far within, and tempting those who come from across the seas to go no farther.”  read more »

Densification in Toronto: The Evolving Urban Form

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Like many of the world’s largest cities (Note 1), public policy seeks to densify Toronto, which is already the densest urban area (the international term) or population centre (the Canadian term) in North America (as used here, north of Mexico). An urban area is continuously built up urbanization and is routinely at the core of a metropolitan area (in Canada, a Census Metropolitan Area, or CMA).  read more »

Korea: Moving to the Suburbs of Seoul

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The Seoul metropolitan area (also called the Seoul Capital Area) has continued its strong population growth over the past decade, with the 2020 census indicating an annual increase of 1.0%.  read more »

Demographia U.S. Housing Affordability – 2022 Edition Released

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Demographia United States Housing Affordability rates middle-income housing affordability, using the median multiple, a measurement of income in relation to housing prices, or 189 major markets (metropolitan areas) for the third quarter of 2021.  read more »

Tokyo, Osaka & Nagoya Cores: Migration Losses

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As Japan fell into population decline early in the last decade, the Tokyo area (Tokyo, Kanagawa, Saitama and Chiba prefectures), in something of a paradox, experienced population increases.  read more »

Core City Population Losses Detailed

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We are living amidst a sea change in demographic trends. According to the Census Bureau, the United States last year experienced its lowest population growth “since the founding of the nation” more than 230 years ago.  read more »

All Major Metropolitan Area Growth Outside Urban Core: Latest Year

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The latest City Sector Model analysis of major metropolitan areas shows that dispersion accelerated in 2020 during the period covered by the American community survey 2020 five- year survey (2016 to 2020). The American Community Survey collects a five year sample that covers virtually all geographies in the United States. The new 2016-2020 sample has an “middle year” of 2018.

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