 From the post-World War II period, there has been massive restructuring in the railroad and other industries, causing a massive loss of jobs in areas that had enjoyed industrial prosperity, with good working incomes for union people.In addition, there has been pressure on the coal industry due to changes in law to improve air, water, and land quality and prevent environmental contamination.By the early 21st century, Shamokin was part of an economically depressed area.