Jefferson City is an unincorporated community and census-designated place (CDP) in Jefferson County, Montana, United States. The population was 472 at the 2010 census. It is part of the Helena Micropolitan Statistical Area.
Ravalli is an unincorporated community in Lake County, Montana, United States. The population was 76 at the 2010 census, down from 119 in 2000. For statistical purposes, the United States Census Bureau has defined Ravalli as a census-designated place (CDP). In the early 1900s, the Pablo-Allard herd in Ravalli was said to be the largest collection of the bison remaining in the U.S. and played a critical role in the conservation of bison.
Augusta is an unincorporated community and census-designated place (CDP) in Lewis and Clark County, Montana, United States. The population was 309 at the 2010 census and rose to 316 in the 2020 census. The most accepted version in the naming of this town is after Augusta Hogan, thought to be the first child born in this town, the daughter of J. D. Hogan, an early rancher.
Lincoln is an unincorporated community and census-designated place (CDP) in Lewis and Clark County, Montana, United States. As of the 2010 census, the population was 1,013.
Fortine is a census-designated place (CDP) in Lincoln County, Montana, United States. The population was 206 at the 2021 census.
Alder is an unincorporated community and census-designated place (CDP) in Madison County, Montana, United States. The population was 86 at the 2020 census, down from 103 in 2010. The community takes its name from Alder Creek, the site of the second major gold discovery in Montana.
Harrison is an unincorporated community and census-designated place (CDP) in Madison County, Montana, United States. The population was 105 at the 2020 census, down from 137 in 2010.
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.
Basin is an unincorporated community and census-designated place (CDP) in Jefferson County, Montana, United States. It lies approximately 10 miles (16 km) southeast of the Continental Divide in a high narrow canyon along Interstate 15 about halfway between Butte and Helena. Basin Creek flows roughly north to south through Basin and enters the Boulder River on the settlement's south side. The population was 212 at the 2010 census, down from 255 at the 2000 census.
Clancy is an unincorporated community and census-designated place (CDP) in Jefferson County, Montana, United States. The population was 1,661 at the 2010 census, up from 1,406 in 2000. It is part of the Helena Micropolitan Statistical Area.
Elkhorn is a census-designated place (CDP) in Jefferson County, Montana, United States, in the Elkhorn Mountains of the southwestern part of the state. As of the 2010 census it had a population of 10. The community is considered a ghost town, and two of its buildings are preserved as Elkhorn State Park.
Norris is an unincorporated community and census-designated place in northeastern Madison County, Montana, United States, at the intersection of U.S. Route 287 and Montana Highway 84. As of the 2020 census, the first where it was listed as a CDP, the population was 46.
Pioneer Junction is a census-designated place (CDP) in Lincoln County, Montana, United States. The population was 959 at the 2010 census.
West Kootenai is a census-designated place (CDP) in Lincoln County, Montana, United States. The population was 365 at the 2010 census.
White Haven is an unincorporated community and census-designated place (CDP) in Lincoln County, Montana, United States. The population was 577 at the 2010 census.
Silver Star is an unincorporated community and census-designated place in Madison County, Montana, United States. As of the 2020 census, it had a population of 46. It is located on Montana Highway 41, 10 miles (16 km) north-northeast of Twin Bridges and 16 miles (26 km) southwest of Whitehall. The community has a post office with ZIP code 59751.
Gilman is an unincorporated community and census-designated place (CDP) in Lewis and Clark County, Montana, United States. It is near the northern border of the county, on the east side of U.S. Route 287. Augusta is less than 2 miles (3 km) to the southwest. US-287 leads northeast from Gilman 24 miles (39 km) to Choteau and south through Augusta 40 miles (64 km) to Interstate 15 near Wolf Creek. Montana Highway 21 forms the southern edge of Gilman and leads east 21 miles (34 km) to Simms.
Jeffers is an unincorporated community and census-designated place (CDP) in Madison County, Montana, United States. It is in the eastern part of the county, on the east side of the valley of the Madison River. By road it is 2 miles (3 km) east of Ennis, which sits on the west side of the river.
Potomac is an unincorporated community and census-designated place (CDP) in Missoula County, Montana, United States. It is in the southeastern part of the county, in the valley of Camas Creek and Union Creek, which flows northwest to the Blackfoot River, part of the Clark Fork watershed.
Boulder Canyon is an unincorporated area and census-designated place (CDP) in Lawrence County, South Dakota, United States. The population was 561 at the 2020 census. It was first listed as a CDP prior to the 2020 census.
