Boulder
City in Jefferson County, Montana

Boulder is a city in Jefferson County, Montana, with 1,201 residents (2020 Census). It sits at 4,908 ft (1,496 m) above sea level. The nearest town is Basin, 8.6 miles W.
- 1,201residents (2020 Census)
- 4,908 ftelevation · 1,496 m
- 1.1 sq miland area · 2.9 km²
- 1,068 / sq mipopulation density
- 59632ZIP code
About Boulder
Boulder is a town in and the county seat of Jefferson County, Montana, United States. It is on the north bank of the Boulder River between Butte and Helena, slightly east of the Continental Divide, at the intersection of Interstate 15 and Montana Highway 69. The population was 1,201 at the 2020 census. It is part of the Helena Micropolitan Statistical Area, which includes all of Lewis and Clark and Jefferson counties; its population is 83,058 according to the 2020 Census.
Established in the 19th century as a stagecoach station, Boulder grew into a regional trading center for farmers, ranchers, and miners and, by the end of that century, home to state schools for the deaf, blind and developmentally disabled. In the 21st century, it is the center of government in Jefferson County, and institutions based in the town offer services for disabled adults and troubled youths. Its library system serves about 10,000 people, and its high school district covers more than 1,000 square miles (2,600 km2). Three buildings in Boulder are listed on the National Register of Historic Places.
Text: Wikipedia · CC BY-SA 4.0
Boulder weather: 7-day forecast
Loading the National Weather Service forecast…
Source: National Weather Service (NOAA).
Live webcams in Boulder
Webcams: Windy.com
Living in Boulder
- Median household income
- $72,500
- Median home value
- $212,300
- Median rent
- $928/mo
- Median age
- 41.4
Do you know Boulder? Tell us about it
Help other travelers: share what makes Boulder special. We review every message before publishing it.
Map of Boulder
Tap any street on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Boulder Street View
Drag the image to look around and tap the arrows on the ground to move. If it says there is no imagery, tap a nearby street on the map above.
Open in Google Maps ›Boulder, MT population
Boulder had 1,201 residents in the 2020 Census.
| 2020 Census | 1,201 |
|---|---|
| Density | 1,068 per sq mi (412 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Boulder at a glance
| State | Montana (MT) |
|---|---|
| County | Jefferson County |
| Type | City |
| Population | 1,201 (2020) |
| Land area | 1.12 sq mi (2.9 km²) |
| Elevation | 4,908 ft (1,496 m) |
| Coordinates | 46.2358° N, 112.1197° W |
| ZIP code | 59632 |
| Census code (GEOID) | 3008575 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Boulder
- Basin8.6 mi W
- Elkhorn8.8 mi NE
- Jefferson City10.7 mi NE
- Clancy15.8 mi N
- Rimini18.8 mi N
- Unionville21.5 mi N
- Montana City21.8 mi NE
- South Hills22.9 mi N
- Radersburg23.5 mi E
- Walkerville24.4 mi SW
- Helena West Side24.9 mi N
- Whitehall25.2 mi S
Straight-line distance between town centers.
Frequently asked questions about Boulder
What county is Boulder in?
Boulder is in Jefferson County, Montana.
What is the population of Boulder, MT?
1,201 people lived in Boulder at the 2020 Census.
What is the ZIP code of Boulder, MT?
The ZIP code of Boulder is 59632.
What is the elevation of Boulder?
4,908 feet (1,496 m) above sea level.
What towns are near Boulder?
Basin (8.6 mi), Elkhorn (8.8 mi), Jefferson City (10.7 mi), Clancy (15.8 mi), Rimini (18.8 mi).
Last updated: