Census Bureau Releases Estimates of Undercount and Overcount in the 2010 Census

by Sabrina I. Pacifici on May 23, 2012

News release: “The U.S. Census Bureau released today results from its post-enumeration survey, providing a measure of the accuracy of the 2010 Census. The results found that the 2010 Census had a net overcount of 0.01 percent, meaning about 36,000 people were overcounted in the census. This sample-based result, however, was not statistically different from zero. The post-enumeration survey, called Census Coverage Measurement, measures the coverage of the nation’s household population (excluding the 8.0 million people in “group quarters,” such as nursing homes or college dorms). It surveys a sample of the 300.7 million people living in housing units and then matches the responses to the census, resulting in estimates of error. The 2000 Census had an estimated net overcount of 0.49 percent and the 1990 Census had a net undercount of 1.61 percent.”

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