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| City | Roundup |
| State | Montana (MT) |
| County | Musselshell |
| Country | United States of America |
| Timezone | Mountain Time (America/Denver) |
| Latitude | 46.445242 |
| Longitude | -108.5418 |
| Population | 2,003 |
| Density | 586.4 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 59072, 59073 |
| Area Code | 406 |
| County Seat | Roundup |
| School District | Roundup Elementary School District |
Roundup is a locality in Musselshell County, Montana, United States. It has a population of approximately 2,003. The population density is 586.4 people per km². Roundup is located at 46.4452°N, 108.5418°W. It observes the Mountain Time (America/Denver) timezone. ZIP code: 59072.
Roundup, Montana, sprawls across the high plains where the Musselshell River, a ribbon of silver in the sun, has patiently etched its way through ochre-tinted badlands and rolling, grass-speckled hills. It lies 45.8 miles north of Billings, MT (from Billings, MT: bearing 358°T), and is situated 43.7 miles north of Lockwood. The air here carries the scent of sagebrush and sun-baked earth, a dry, clean fragrance that seems to expand with the vast, impossibly blue sky. Cottonwood trees, their leaves a vibrant green against the muted landscape, cluster along the riverbanks, offering pockets of shade and a gentle rustling murmur that is the town’s constant song. The streets of Roundup themselves are wide and straight, a testament to the open country it calls home, with buildings that speak of practicality and resilience, many painted in hues that echo the surrounding earth and sky. This is a place where history runs as deep as the coal seams that once fueled its growth, a legacy still visible in the weathered facades of buildings and the stories whispered by its inhabitants. The Musselshell River was not just a geological force; it was the lifeblood that drew early settlers, and the land, though often harsh, has been coaxed into yielding bountiful harvests and supporting hardy livestock. The economy of Roundup has long been tied to the bounty of the earth, from its mineral wealth to the agricultural enterprises that continue to sustain it, creating a quiet industriousness that underpins the unhurried rhythm of daily life. You can still feel the echoes of the past in the sturdy architecture and the enduring spirit of the people who call Roundup home, a spirit as resilient and enduring as the Montana landscape itself.
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This page provides an embedded street and satellite map of Roundup, Montana — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 46.445242, -108.5418. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Roundup and Musselshell County.
Detailed location data for Roundup includes the ZIP code (59072), telephone area code (406), county seat of Musselshell County (Roundup), and school district assignment (Roundup Elementary School District). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Roundup is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |