The United States Census 1800 was the second census in the United States . As a result of the census, a population of 5,308,483 inhabitants was determined for the USA on August 4, 1800, of which 893,602 were slaves . The District of Columbia was also included for the first time.
The data contain information on the name of the head of the family, number of free white persons (men and women) - broken down according to age groups (<10, 10–15, 16–25, 26–44, 45 and older), number of free persons, number the slave, city or district and occasionally place of residence or residential district.
The state population figures from the 10-year United States censuses are key to determining the number of representatives from those states in the United States House of Representatives . The adjustment is usually made in the next but one Congress after a census.
Most populous cities
Most populous cities in the United States by population in 1800.