The 2010 Decennial Census: Background and Issues Jennifer D. Williams, October 18, 2012, Congressional Research Service 7-5700, www.crs.gov, R40551 Estimates of 2010 census coverage, released on May 22, 2012, indicated a net percentage overcount of 0.01% for the total population, 0.84% for non-Hispanic whites, and 1.95% for American Indians off reservations; but a net percentage undercount of 2.07% for non-Hispanic blacks, 0.08% for non-Hispanic Asians, 1.34% for native Hawaiians or other Pacific Islanders, 4.88% for American Indians on reservations, and 1.54% for Hispanics.