Resident Population in Billings, MT (MSA) was 192.53100 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Billings, MT (MSA) reached a record high of 192.53100 in January of 2024 and a record low of 139.09100 in January of 2000. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Billings, MT (MSA) - last updated from the United States Federal Reserve on September of 2025.