Why was segregation mostly in the southern states?

Segregation was primarily concentrated in the southern states due to the historical context of slavery and the Civil War, which entrenched racial divisions in the region. After the war, Jim Crow laws were enacted to maintain white supremacy and control over Black populations, leading to widespread institutionalized racism. Additionally, the cultural and economic structures in the South, including the reliance on agriculture and the labor of Black individuals, reinforced the social norms that supported segregation. This legacy persisted long after the Civil Rights Movement began, influencing the persistence of segregationist practices in the region.