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About the 1850 census
Highlights
- 7th decennial census
- US population: 23,191,876
- California population: 92,597
- First census to include California. Note: federal enumerators conducted the census in 1850. California also conducted a state census in 1852. Both results are included in the 1850 census publications. The federal census of 1850 is missing Contra Costa, San Francisco, and Santa Clara counties. They are included in the 1852 state census.
- First time additional "social statistics" (information about taxes, schools, crime, wages, etc) was gathered.
- First census to use a person (rather than household) as the basic unit of enumeration.
Questions asked
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.
For more information:
- Measuring America: The Decennial Censuses From 1790 to 2000 Census Bureau.
- Population and Housing Items on the General Census Schedules 1790 - 2000 from U Mich.
Coverage

For more information:
- Map Guide to the U.S. Federal Censuses, 1790 - 1920 (SSHL Ref G 1201 .F7 T5 2005)