What percent of the population of united state during the civil war lived in the north and the south?

During the American Civil War, approximately 22 million people lived in the North, which accounted for about 65% of the total U.S. population, while the South had around 9 million people, including about 3.5 million enslaved individuals, making up roughly 35% of the population. This demographic divide significantly influenced the resources and manpower available to both sides during the conflict.