Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Cass County, IL was 438.00000 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 Cass County, IL reached a record high of 538.00000 in January of 2019 and a record low of 166.00000 in January of 2009. 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 Cass County, IL - last updated from the United States Federal Reserve on May of 2024.