Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Guernsey County, OH was 706.00000 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 Guernsey County, OH reached a record high of 797.00000 in January of 2021 and a record low of 421.00000 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 Guernsey County, OH - last updated from the United States Federal Reserve on May of 2024.