Resident Population in Grand Junction, CO (MSA) was 162.84500 Thous. of Persons in January of 2025, according to the United States Federal Reserve. Historically, Resident Population in Grand Junction, CO (MSA) reached a record high of 162.84500 in January of 2025 and a record low of 117.48800 in January of 2000. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Grand Junction, CO (MSA) - last updated from the United States Federal Reserve on May of 2026.