Definition: a residential community further out of an urban core than a suburb, but still within commuting distance
It’s a portmanteau of “extra” and “urban.”
The Brookings Institution published a report in 2006 that identified three criteria:
- Economic connection to a large metropolis.
- Low housing density: bottom third of census tracts with regard to housing density. In 2000, this was a minimum of 2.6 acres (11,000 m2) per resident.
- Population growth exceeding the average for its metropolitan area.
Why I Looked It Up
Found in a book about a lawsuit:
In 1999, as Ted Lyon worked on the Smalley case, he hired a security firm to sweep for listening devices in his offices, located on the fifth floor of an office tower in the Dallas exurb of Mesquite.
I did some measuring, and Mesquite is 12 miles out of the Dallas central core, so it fulfills #1 in the Brookings criteria above. However, satellite photos show that it has very dense housing, so there’s no way to fulfills #2. I have no idea about #3.
The Wikipedia page for Mesquite describes it as a suburb, but maybe it was different in 1999? Or maybe these things are just really subjective?