Animated mapsHistorical MapsWorld Slaves as percentage of population (1790 – 1860) December 1, 2015 Alex This post may contain affiliate links. As an Amazon Associate, we earn from qualifying purchases. Related Posts:When each U.S. states population exceeded 1 million…The U.S. largest citiesPercentage of Blacks in America'sU.S. Population Density MappedSlavery in the United States: A Comprehensive OverviewPercent of population with a disability by U.S. countySlave population of the southern states of the U.S.U.S. population by race