Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Boone County, IA was 347.00000 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 Boone County, IA reached a record high of 347.00000 in January of 2022 and a record low of 108.00000 in January of 2017. 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 Boone County, IA - last updated from the United States Federal Reserve on May of 2024.