The earliest data on data.census.gov is from the 2000 Census. For a list of detailed data availability by dataset, please see the FAQ: "What data are available on data.census.gov?”
In the future, we may consider the possibility of adding more historical data based on user feedback.
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Email us at [email protected] for any questions or comments you may have. For more guidance on data availability and using data.census.gov, the Census API, and Microdata Access, visit our Resources page.