According to the 1790 census, the enslaved people live within the United States is in the South.
Four states had more than 100,000 slaves in 1790: Virginia (292,627); South Carolina (107,094); Maryland (103,036); and North Carolina (100,572).
At that time, slaves were counted in every states except for Maine and Massachusetts.
The United States Census of 1790 constituted the first census of the entire United States. It recorded the population of the United States as of Census Day, August 2, 1790, as mandated by Article I, Section 2 of the United States Constitution and applicable laws.