Lockwood is a census-designated place (CDP) in Yellowstone County, Montana, United States. It is not an organized city or town. Lockwood had the largest growth rate in the declare of Montana when 57.8% growth before 2000. The 2010 census put Lockwood’s population at 6,797. Lockwood is a suburb of Billings and is the second largest community in the Billings Metropolitan Area. Annexation of Lockwood to Billings has been studied; however, the June 2009 Billings City Council Annexation plot states that the city has no plans to annex Lockwood in the foreseeable future. Lockwood is the site of a major Exxon refinery.

Lockwood is located at 45°48′27″N 108°25′25″W / 45.80750°N 108.42361°W / 45.80750; -108.42361 (45.807504, -108.423600). The CDP has a total area of 12.90 square miles (33.4 km²) with 527 inhabitants per square mile (203/km).

Lockwood bordered the Crow “Mitsiadazi” Reservation, in the 1800s. Cows replacing the buffalo brought an grow less to the plains Native Americans’ way of life. Lockwood was named after Captain Lockwood, reputed to have many victories skirmish Native Americans and to have been a surveyor for the dealing out who camped in the foothills in the late 1800s. In 1907, settlers opened a public road through Lockwood flats of unventilated loam to the 2nd crossing of Dry Creek, to the Dry Creek Road traversing to the Reservation. The archaic Native American supply road is nevertheless etched into the side of the hill at the south grow less of Exxon Road which was later called Peter Hoe Road.

Lockwood Flats was house of the Johnson Ranch. Just to the southeast of the ranch, one can find reminisces of Cavalry camps as they stay in the area for a accumulate winter surveying the house for the federal government. The area known as Lockwood Flats was in addition to originally the site of a stop called Hirsch, located just amongst Johnson Lane and outdated Coulson Road. A community began to produce around it, however, the topographical broadcast Lockwood stuck, and the state Hirsch was eventually forgotten. On June 16, 1965, an F3 tornado touched down near Lockwood. It was the strongest tornado ever recorded in Yellowstone County.