Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Johnson County, MO was 1907.00000 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 Johnson County, MO reached a record high of 2449.00000 in January of 2013 and a record low of 1756.00000 in January of 2021. 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 Johnson County, MO - last updated from the United States Federal Reserve on May of 2024.