Depending on the type of job there is a fair chance if you want a trucking job in Pennsylvania you should look locally. Generally if you consider a locally based company you may get home more often if you are a driver. Folks searching for non driver jobs instead of truck driver jobs just need a trucking company with a facility in Pennsylvania of course.
In the United States of America there is always going to be a need for trucking jobs. Truck driving jobs have to stay here as there is no way for them to ever be move elsewhere. Because it is not really possible jobs for drivers in the US should not be sent elsewhere. It just is not really possible as products need to be moved. However in a slow economy jobs may decrease overall until the economy picks up again. In good times turn over of truckers may be high because drivers can usually go to many other companies. In poor times that may not be the case.