ADA, Okla.—Chickasaw Nation Governor Bill Anoatubby recently announced a partnership between the U.S. Census Bureau and Chickasaw Nation to help ensure Native Americans are counted accurately during the 2020 census.

“There has been an undercounting of certain populations and, as Native Americans, we have had a long-term issue that affects us,” Governor Anoatubby told census officials.

Native Americans were undercounted by about 4.9 percent, a rate more than double the next population group.

The Chickasaw Nation has formed a committee to address this disparity and is developing an awar...