Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Linn County, IA was 13105.00000 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 Linn County, IA reached a record high of 13183.00000 in January of 2021 and a record low of 6621.00000 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 Linn County, IA - last updated from the United States Federal Reserve on May of 2024.