Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Grant County, OK was 90.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Grant County, OK reached a record high of 90.00000 in January of 2022 and a record low of 0.00000 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Grant County, OK - last updated from the United States Federal Reserve on May of 2024.