Are Cities Really Growing Faster Than Suburbs?

Last week's census figures were widely used to point to a swelling of urban populations. Chris Briem says that the jury's still out.

The release of new census figures last week brought with it a wave of excitement over what seemed to be a migration back to the city. But as Briem points out, the supposed spike, reported extensively in major news sources, appears to be a misreading of the data and methodology.

The Census Bureau altered its methodology for calculating population in subcounty areas (i.e. cities, among other places) this year, and is "likely to change it again before next year's update." More specifically:

"To produce subcounty housing unit estimates, we distributed the extrapolated county estimates down to each subcounty area within a county based on 2010 Census proportions." (emphasis added)

In other words, "the Census basically took the growth... and just assumed it was spread evenly between center cities and suburbs within counties across the nation. The result was that it all of a sudden appeared cities were growing faster (or in some cases shrinking less) than they have been in other data. In reality, the new patterns were no more than an artifact of the temporary change in the Census Bureau's methodology for this data."

Full Story: Misreferencing Misoverestimated Population

Comments

building block set

NEW! Build the world you want to see

Irresistible block set for adults when placed on a coffee table or desk, and great fun for kids.
$25

Prepare for the AICP* Exam

Join the thousands of students who have utilized the Planetizen AICP* Exam Preparation Class to prepare for the American Planning Association's AICP* exam.
Starting at $245
Book cover of Unsprawl

Unsprawl: Remixing Spaces as Places

Explore visionary, controversial and ultimately successful strategies for building people-centered places.
Starting at $12.95

Stay thirsty, urbanists

These sturdy water bottles are eco-friendly and perfect for urbanists on the go.
$19.00