Resident Population in Hartford County, CT was 896.85400 Thous. of Persons in January of 2021, according to the United States Federal Reserve. Historically, Resident Population in Hartford County, CT reached a record high of 897.93200 in January of 2020 and a record low of 805.50000 in January of 1979. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Hartford County, CT - last updated from the United States Federal Reserve on May of 2024.