What are the US dependencies?

Detroit, Michigan has the highest rate of welfare dependency, and also one of the highest unemployment rates in the country. Detroit, MI Buffalo, NY Cincinnati, OH Cleveland, OH Miami, FL St. Louis,...

After the American Civil War the northern and southern states were united and we called them, prosaically, the United States

the two dependencies of the US in the west indies are Puerto Rico and the US Virgin Islands.

Dependency ratio is essentially the number of working individuals in a population compared to the non-working. A declining working population is supporting an ever larger number of retired persons.