Which of the original 13 states had an immigration population of 20 percent or more in the mid-1800s

13 States were Massachusetts, Connecticut, Rhode Island, New Hampshire, New York, New Jersey, Delaware, Pennsylvania, Virginia, Maryland, North Carolina, South Carolina and Georgia.New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Delaware, Pennsylvania, Maryland, Virginia, North Carolina, South Carolina, and Georgia 

not really sure its correct i found this online

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.