Census Bureau's "By Decade" website - includes a variety of publications, questionnaires, datasets, and more
Questions asked (see questionnaire)
Name; age; sex; race (white, black or mulatto); whether deaf and dumb, blind, insane, or idiotic; value of real estate; occupation; place of birth; whether married within the year; school attendance; literacy; whether a pauper or convict. Supplemental schedules for slaves; public paupers and criminals; persons who died during the year.
Social Explorer - remote access limited to UCSD affiliates
Find all 1850 census publications in the library catalog.
The Seventh Census of the United States: 1850 [C 3.14:850]
Statistics of Manufactures, 1850 [C 3.14:850-1/1]
Mortality statistics of the United States, 1850 [C 3.14:850-1/2]
Report of the Superintendent of the Census for December 1, 1852 [C 3.14:850-2]
Compendium [C 3.14:850-3 (Annex HB881.A1 D4 v.5)]