Resident Population for all Missouri counties in Federal Reserve District 8: St. Louis was 4198.56500 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population for all Missouri counties in Federal Reserve District 8: St. Louis reached a record high of 4198.56500 in January of 2024 and a record low of 3160.49000 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population for all Missouri counties in Federal Reserve District 8: St. Louis - last updated from the United States Federal Reserve on April of 2026.