At its height what was the Slave poplation the US?

At its height in the early 1860s, just before the Civil War, the enslaved population in the United States reached approximately 4 million individuals. This population was concentrated primarily in the Southern states, where enslaved people were forced to work on plantations, particularly in the cultivation of cotton, tobacco, and sugar. The institution of slavery had profound social, economic, and political implications that shaped the history of the nation.