Resident Population in Putnam County, TN was 84.89400 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Putnam County, TN reached a record high of 84.89400 in January of 2024 and a record low of 35.48700 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Putnam County, TN - last updated from the United States Federal Reserve on February of 2026.