Boomburb

The neologism was principally promoted by American Robert E. Lang of the Metropolitan Institute at Virginia Tech.

Boomburbs are defined as incorporated places in the top 50 Metropolitan areas in the United States of more than 100,000 residents, but that are not the core cities in their metropolitan areas and have maintained double-digit rates of population growth (10% or more) over consecutive censuses between 1970 and 2000.

[1] As of the 2000 Census, the United States contained 54 boomburbs, which accounted for about half of the 1990s growth in cities with between 100,000 and 500,000 residents.

The boomburbs listed above are based on the populations of cities determined by and definitions of metropolitan areas used in the 2000 Census.

Boomburbs have occurred mostly in the Southwest, with nearly half developing in areas of central and southern California.