High School Graduate or Higher (5-year estimate) in New London County, CT was 93.00% in January of 2021, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in New London County, CT reached a record high of 93.00 in January of 2021 and a record low of 89.80 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher (5-year estimate) in New London County, CT - last updated from the United States Federal Reserve on May of 2024.