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How is ACS data different from Census data?

How is ACS data different from Census data?

Both datasets are produced by the U.S. Census Bureau.  The ACS is a sample survey that occurs on an ongoing basis, while the Census is a count of every individual in the United States that occurs every ten years.  Since the ACS is based on a sample of the population, the Census Bureau provides a margin of error for every estimate representing the range of values in which an estimate likely falls.  As the Census is a count of the entire population, Census data does not include margins of error.

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