Locations in the U.S. territories (other than Puerto Rico) are included, but are not ranked because they have 2010 data. Data is collected annually for the 50 states, District of Columbia and Puerto Rico (in American Community Survey estimates), but data is not collected annually in other U.S. territories.
The U.S. territories outside of Puerto Rico are part of the data set, but they are not ranked due to limited availability of 2010 information. Data is collected on a yearly basis for the 50 states, Washington D.C., and Puerto Rico through the American Community Survey, whereas other U.S. territories do not receive regular annual data.