1840 Census: Compendium of the Enumeration of the Inhabitants and Statistics of the United States
This publication contains the following data from the 1840 census:
population counts and characteristics, and
economic data pertaining to mines, agriculture, horticulture, forest products, fisheries, commerce, and manufactures.
The economic data include aggregate value, quantity produced, capital invested, and number of persons employed, among other data.
Population counts by age grouping are provided for the following categories of persons:
free white males,
free white females,
free colored males, and
free colored females.
Counts of male slaves and female slaves are sometimes provided by age grouping. Characteristic data pertain only to free persons. The population data include information on employment by industry.