Resident Population in the Rocky Mountain BEA Region was 13314.64500 Thous. of Persons in January of 2025, according to the United States Federal Reserve. Historically, Resident Population in the Rocky Mountain BEA Region reached a record high of 13314.64500 in January of 2025 and a record low of 1321.00000 in January of 1900. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in the Rocky Mountain BEA Region - last updated from the United States Federal Reserve on April of 2026.