Yellowstone County is the most populous county in the U.S. state of Montana. As of the 2020 census, the population was 164,731. Its county seat is Billings, the state's most populous city. Like the nearby park, Yellowstone County is named after the Yellowstone River which roughly bisects the county, flowing southwest to northeast. The river, in turn, was named for the yellow sandstone cliffs in what is now Yellowstone County.
Gardiner is a census-designated place (CDP) in Park County, Montana, United States, along the 45th parallel. As of the 2020 census, the population of the community and nearby areas was 833.
Sidney is a city in and the county seat of Richland County, Montana, United States, less than 10 mi (16 km) west of the North Dakota border. The population was 6,346 at the 2020 census. The city lies along the Yellowstone River and is in proximity to the badlands of the Dakotas. Sidney is approximately midway between Glendive, Montana and Williston, North Dakota.
Ballantine is a census-designated place (CDP) in Yellowstone County, Montana, United States. It lies approximately nine miles (14 km) northeast of Billings on Interstate 94. The population was 346 at the 2000 census. Ballantine, along with the communities of Pompey's Pillar, Worden, and Huntley, is part of the Huntley Project, an irrigation district created by the United States Bureau of Reclamation. The majority of Ballantine's population lives on scattered farms and ranches surrounding the actual townsite.
Billings is the most populous city in the U.S. state of Montana, with a population of 117,116 as of the 2020 census. Located in the south-central portion of the state, it is the seat of Yellowstone County and the principal city of the Billings Metropolitan Area, which had a population of 184,167 in the 2020 census. With one of the largest trade areas in the United States, Billings is the trade and distribution center for much of Montana east of the Continental Divide. Billings is also the largest retail destination for much of the same area. The Billings Chamber of Commerce claims the area of commerce covers more than 125,000 square miles (320,000 km2). In 2009, it was estimated to serve over 500,000 people.
Custer is a village in Yellowstone County, Montana, United States. The population was 145 at the 2000 census.
Huntley is a census-designated place (CDP) in Yellowstone County, Montana, United States. The population was 411 at the 2000 census. Huntley lent its name to the Huntley Project, a federal irrigation project that began delivering water to the arid district in 1907. Today, Huntley is an eastern suburb of Billings and is located east of Shepherd and west of Worden.
Laurel is a city in Yellowstone County, Montana, United States. It is the third largest community in the Billings Metropolitan Statistical Area, and is located in the Yellowstone Valley, as an east–west terminal division point of the BNSF Railway. The population was 7,222 at the 2020 census.
Lockwood is a census-designated place (CDP) in Yellowstone County, Montana, United States. It is not an organized city or town. The population was 7,195 at the 2020 census.The population was 7,222 at the 2020 census. Lockwood is a suburb of Billings and is the second largest community in the Billings Metropolitan Statistical Area. Annexation of Lockwood to Billings has been studied; however, the June 2009 Billings City Council Annexation Plan states that the city has no plans to annex Lockwood in the foreseeable future. Lockwood is the site of a major Exxon refinery.
Worden is a census-designated place (CDP) in Yellowstone County, Montana, United States. The population was 582 at the 506 at the 2020 census. Worden, along with Ballantine, Huntley, and Pompey's Pillar, is part of the Huntley Project, an irrigation district established by the United States Bureau of Reclamation in 1907.
Big Sky is an unincorporated census-designated place (CDP) in Gallatin and Madison counties in southwestern Montana, United States. As of the 2010 census it had a population of 2,308. It is 45 miles (72 km) southwest of Bozeman. This unincorporated community straddles both counties, is not considered a town, and does not have a town government. The primary industry of the area is tourism.
Pompeys Pillar National Monument is a rock formation located in south central Montana, United States. Designated a national monument on January 17, 2001, and managed by the U.S. Bureau of Land Management in conjunction with The Friends of Pompeys Pillar, it consists of only 51 acres (21 ha), making it one of the smallest National Monuments in the U.S. The community of Pompeys Pillar lies just east of the monument.
The Huntley Project is an irrigation project in southern Montana that was established by the United States Bureau of Reclamation in 1907. The district includes the towns of Huntley, Worden, Ballantine, and Pompeys Pillar.
Pompeys Pillar is a Census Designated Place in Yellowstone County, Montana, United States and has a postal ZIP code (59064).
Huntley Project High School is a high school in Worden, Montana. Home of the Red Devils, the Huntley Project School District serves students living in four small Montana communities: Worden, Ballantine, Huntley, and Pompey's Pillar, with total population nearing 3,000 people. It is located 20 miles (32 km) east of Montana's largest city, Billings, in the southeastern part of Montana.
Acton is an Census Designated Place in northwestern Yellowstone County, Montana, United States. It has a postal ZIP code (59002) and lies along Montana Highway 3 northwest of the city of Billings, the county seat of Yellowstone County.
Hesper is an unincorporated community in western Yellowstone County, Montana, United States. It is located northeast of Laurel and west of Billings. Hesper appears on the Mossmain U.S. Geological Survey Map.
Molt is an unincorporated rural village located in Stillwater County, Montana, United States, which has a post office ZIP code (59057) and several granaries. A hardware store still stands, which stood as the Prairie Winds cafe for many years; today the building remains unoccupied.
Osborn is a populated place and ghost town located in Yellowstone County, Montana, United States.
Mountain View Colony is a Hutterite community and census-designated place (CDP) in Yellowstone County, Montana, United States. It is in the western part of the county, 10 miles (16 km) to the southeast of Broadview and 26 miles (42 km) northwest of Billings.
