A shift from mainly a rural society, to more cities and metropolitan areas becoming urbanized, started to form during and after World War II. Since the late 20th century, certain Southern states and areas have seen great economic growth. This growth has led to many migrants moving to southern states, including many that are in the eastern United States. In 2020, Fortune 500 companies headquartered in eastern southern states included: Virginia with 22, Georgia with 18, Florida with 18, North Carolina with 13, and Tennessee with 10.