Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Umatilla County, OR was 612.00000 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 Umatilla County, OR reached a record high of 756.00000 in January of 2020 and a record low of 399.00000 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 Umatilla County, OR - last updated from the United States Federal Reserve on May of 2024.