There should be pecan trees in every yard. Well, maybe not every yard but, every yard that is big enough.
There are pecan varieties that will produce pecans in most of the southern two thirds of the United States. That includes southeastern Pennsylvania, down the eastern piedmont and coastal plain of the east coast states, around the Appalachian Mountains, back up through the mid west to the very southern parts of Michigan. From there across parts of Iowa, Nebraska, Kansas, Oklahoma, through the southwest into southern California.
That is a lot more of the country than you thought.
Pecans are easier to grow than apples and grafted trees will begin to bear in 5 to 7 years. Apples take 3 to 5 years.
Pecan trees make great shade trees. The are tall and strong and grow at a medium rate.
Pecan trees add value to a property. They are less messy than fruit trees and produce a crop that can be used at home or sold