Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Martin County, FL was 7935.00000 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 Martin County, FL reached a record high of 8564.00000 in January of 2018 and a record low of 7443.00000 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 Martin County, FL - last updated from the United States Federal Reserve on May of 2024.