Population Estimate, Total, Hispanic or Latino (5-year estimate) in Allegheny County, PA was 29272.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Allegheny County, PA reached a record high of 29272.00000 in January of 2022 and a record low of 16588.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in Allegheny County, PA - last updated from the United States Federal Reserve on May of 2024.