Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in New Haven County, CT was 525718.00000 Persons in January of 2021, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in New Haven County, CT reached a record high of 593942.00000 in January of 2009 and a record low of 525718.00000 in January of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in New Haven County, CT - last updated from the United States Federal Reserve on May of 2024.