What geographic region of the US gained the most wealth during the industrial era?

During the industrial era, the Northeast region of the United States, particularly areas like New York, Pennsylvania, and Massachusetts, gained the most wealth. This region became the center of manufacturing, finance, and innovation, with cities like Pittsburgh and Boston thriving due to industrialization. The establishment of factories, railroads, and a growing labor force contributed significantly to its economic growth. Additionally, the Northeast's access to resources and transportation networks facilitated its rise as an industrial powerhouse.