Population Estimate, Total, Not Hispanic or Latino, Asian Alone (5-year estimate) in Middlesex County, CT was 5347.00000 Persons in January of 2021, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, Asian Alone (5-year estimate) in Middlesex County, CT reached a record high of 5347.00000 in January of 2021 and a record low of 3477.00000 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, Asian Alone (5-year estimate) in Middlesex County, CT - last updated from the United States Federal Reserve on May of 2024.