Population change has short run and long run effects. Short run effects include changes in fertility rates that can result from economic fluctuations. For example, during a recession, couples may delay having children until economic conditions improve. Once job growth has begun and expectations rise, birthrates can increase The correlation is not perfect and other demographic factors could come into play. read more »
The latest edition of Demographia World Urban Areas has just been released. The publication includes population estimates, urban land area estimates and urban densities for all nearly 850 identified urban areas in the world with a population of 500,000 or more. These urban areas account for approximately 48% of the world's urban population. Overall, data is provided for approximately 1500 urban areas, comprising approximately 1.9 billion people, or 52% of the world's urban population. read more »
The recent release of the 2010 US census data on urban areas (Note 1) shows that Americans continue to prefer their lower density lifestyles, with both suburbs and exurbs (Note 2) growing more rapidly than the historic core municipalities. This may appear to be at odds with the recent Census Bureau 2011 metropolitan area population estimates, which were widely mischaracterized as indicating exurban (and suburban) losses and historical core municipality gains. read more »
Jean Gottman in 1961 coined the term megalopolis (Megalopolis, the Urbanized Northeastern Seaboard of the Unites States) to describe the massive concentration of population extending from the core of New York north beyond Boston and south encompassing Washington DC. It has been widely studied and mapped, including by me. (Morrill, 2006, Classic Map Revisited, Professional Geographer). The concept has also been extended to describe and compare many other large conurbations around the world.
Maybe it’s time to see how the original has fared? And what has happened to other metropolitan complexes in the US, most notably Los Angeles, San Francisco, Chicago and should we say Florida? read more »
Recently the Census Bureau released 2011 county and metro area population estimates that showed overall slowing population growth and particularly showing slow to halting growth in exurban counties.
Someone once said to me about Chicago’s Mayor Daley that if he did something you liked, he was a visionary genius leader, but if he did something you hated, he was a corrupt machine dictator.
That seems to be how too many urbanists view the Census Bureau. read more »
My April 9 Cross Country column commentary in The Wall Street Journal (California Declares War on Suburbia) outlined California's determination to virtually outlaw new detached housing. The goal is clear: force most new residents into multi-family buildings at 20 and 30 or more to the acre. read more »
The map is shifting, and Democrats see the nation’s rapidly changing demography putting ever more states in play—Barack Obama is hoping to compete in Arizona this year, to go along with his map-changing North Carolina and Indiana wins in 2008—and eventually ensure the party’s dominance in a more diverse America, as Republicans quite literally die out. read more »
Each emerging American generation of adolescents and young adults tends to have a distinctive relationship with its parents. For the Baby Boomers of the 1960s and 1970s, that relationship was often conflicted, even adversarial. For Generation X in the 1980s and 1990s it was frequently distant and disrespectful. By contrast, the interactions with their parents of most of today’s Millennial Generation (born 1982-2003) are close, loving, and friendly. read more »
The urban population of the United States is now 249 million, according to the 2010 Census, 81 percent of the total. This is impressive, and not all surprising for a large developed economy. Yet the urban population --- meaning cities, suburbs and exurbs --- is not everything. And in many ways for everything from food, resources and recreation, the urban areas still depend on the nearly sixty million who live in rural America read more »
The new 2011 Census Bureau county and metropolitan area population estimates indicate that Americans are staying put. Over the past year, 590,000 people moved between the nation's counties. This domestic migration (people moving within the nation) compares to an annual rate of 1,080,000 between the 2000 and 2009. Inter-county domestic migration peaked in 2006 at nearly 1,620,000 and has been falling since that time (Figure 1). read more »