Musselshell County GIS Maps
Musselshell County, Montana, has 4,730 residents across 7,898 parcels and covers 1,869.0 square miles. The population grew 4.2% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Musselshell County is 30065.
Roundup is the county's largest population center. Musselshell County also includes 2 zip codes, 0 public school districts and 9 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show parcel data, population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers, Parcels and sample data. Paid packages add full layers, analytics and database files.
Musselshell County Trends
- Population
- 4,730▴
- Median Home Value
- $221,200▾
- K-12 Enrollment
- --—
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
Musselshell County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
Musselshell County Parcels
Musselshell County has 7,898 mapped parcels covering 1,193,886 acres. The median assessed value is $29,613. The median lot size is 20.10 acres. 5,161 parcels are 10 acres or larger. Vacant land accounts for 50.8% of parcels. Improved property follows at 37.9% and exempt property at 10.2%. The records carry 3,314 distinct owner names. About 16% of parcels list an owner mailing address outside Montana. Owner names, mailing addresses, assessed values and lot sizes are on nearly every parcel. Browse the interactive Musselshell County Parcel viewer here.
Musselshell County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 7,898 | 100% |
| Owner name | 7,890 | 99.9% |
| Owner mailing address | 7,890 | 99.9% |
| Site address | 3,323 | 42.1% |
| Land use code | 0 | 0% |
| Land use description | 7,890 | 99.9% |
| Assessed value | 7,869 | 99.6% |
| Land value | 7,869 | 99.6% |
| Improvement value | 7,869 | 99.6% |
| Acreage | 7,898 | 100% |
| Parcel boundary | 7,898 | 100% |
| Download all Musselshell County parcels. | ||
Field coverage measured across all Musselshell County parcel records.
Musselshell County Population
Musselshell County had 4,730 residents in 2020. That was 4.2% higher than in 2010. Musselshell County added 233 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 3 people per square mile. Two of the county's most populated postal areas are Roundup and Musselshell.
Population Trend in Musselshell County MT
Musselshell County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Musselshell County Zip Codes
Musselshell County has 2 zip codes. Two of the county's most populated zip codes are Roundup (59072) and Musselshell (59059). Roundup is the largest zip by population, with about 4,150 residents or 88% of the county total. Together, the three largest zips account for about 91% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Musselshell County MT
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 59072 | Roundup | 4,150 | ▴ 0.2% |
| 59059 | Musselshell | 168 | ▴ 15.1% |
| Download all zip code data | |||
Musselshell County Zip Code populations and trends per most recent census data.
Musselshell County Demographics
Musselshell County has a median age of 51.3, which makes the county a little older than Montana overall. About 19.6% of residents are under 18, while 28.8% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 65 and over at about 28.8% of the population, which points to an older population profile. About 21.9% of adults have a bachelor's degree or higher, above the statewide figure of 34.5%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Musselshell County MT
Median Age
51.3
Under 18
19.6%
Age 65+
28.8%
Bachelor's+
21.9%
Musselshell County School Districts
Musselshell County is served by a network of public school districts across the map area. Several larger districts account for a substantial share of students across the county map area. A few larger districts account for much of the county-serving student population. Enrollment trends are not available yet for the districts shown on the county map.
Musselshell County Housing & Real Estate
Musselshell County has a median home value of $221,200 and a median gross rent of $865. About 83% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Montana median, while rents come in below the state average. In March 2026, the median listing price was $409,950 and homes spent about 63 days on the market.
Musselshell County Housing Mix
Musselshell County housing mix: owner, renter and vacant units.
Musselshell County Housing Trends
Musselshell County median home value and rent trend (last 5 years).
Businesses in Musselshell County, MT
Musselshell County has 209 business listings across 133 categories. The largest categories in Musselshell County business listings are Churches & Religious Organizations (10, 4.8%), Farm (7, 3.3%), and Gas Stations (5, 2.4%). The full Musselshell County business listings dataset includes names, categories, addresses and contact details where available. Musselshell County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Musselshell County, MT
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 10 | 4.8% |
| Farm | 7 | 3.3% |
| Gas Stations | 5 | 2.4% |
| Pet Services | 4 | 1.9% |
| Insurance Agencies | 4 | 1.9% |
| Auto Repair | 4 | 1.9% |
| Livestock Breeder | 3 | 1.4% |
| Public And Government Association | 3 | 1.4% |
| Community & Nonprofits | 3 | 1.4% |
| Bars & Nightlife | 3 | 1.4% |
Musselshell County Business Listings
| Business | Category | City |
|---|---|---|
| 3-P Stables | Active Life | Roundup |
| Bull Mountain Acupuncture | Acupuncture | Roundup |
| Horses Plus Feeds | Agricultural Service | Roundup |
| Roundup Airport | Airport | Musselshell County |
| The Backporch | American Restaurants | Roundup |
| Rimrock Humane Society | Animal Shelters | Roundup |
| Art by Angie | Art Gallery | Roundup |
| B and K Ceramics | Arts And Crafts | Roundup |
| Bull Mountain Hunting Club | Arts And Entertainment | Roundup |
| LibertyX Bitcoin ATM | ATMs | Melstone |
| Download Musselshell County business listings | ||
Musselshell County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Musselshell County Basemaps
Musselshell County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Musselshell County Data Package
This page shows a preview of what's included in the Musselshell County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for parcels, zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border Musselshell County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.