Printable Blank Map of Montana with Counties
Spanning 147,040 square miles across the Crown of the Continent, this blank vector map of Montana delineates all 56 counties from the glaciated peaks of the Rocky Mountains east across expansive high plains wheat country. Rendered in Montana State Plane (EPSG:32100), it preserves uniform metric scale from Glacier National Park down to the Yellowstone River valley.
About this Blank Map of Montana
This printable blank map represents Montana on the authentic NAD83 (2011) / WGS84 ellipsoidal datum. All 6 interactive visual variants—including Blank Outline, Counties Boundaries, Centroid Labels, Capital City Marker (Helena), and High-Contrast Printer B&W—are generated synchronously from identical coordinate geometry.
| Specification | Value | Compliance & Source |
|---|---|---|
| Jurisdiction / Entity | Montana | US State |
| Subdivisions Rendered | 56 Counties | Verified Topological Polygon Mesh |
| Primary Capital City | Helena | Marked on the capital variant |
| Cartographic Projection | MONTANA STATE PLANE | Distortion-Minimized Coordinate Map |
| Reference Datum | NAD83 (2011) / WGS84 | NOAA NGS / EPSG:32100 (State Plane Coordinate System) |
Montana Counties at a Glance
- Counties
- 56
- Capital
- Helena
- Population (2020)
- 1,084,244
- Land area
- 145,546 sq mi
Most populous counties
- Yellowstone County (Billings): 164,731 people, 15.2% of the state
- Gallatin County (Bozeman): 118,958 people, 11.0% of the state
- Missoula County (Missoula): 117,927 people, 10.9% of the state
- Flathead County (Kalispell): 104,354 people, 9.6% of the state
- Cascade County (Great Falls): 84,409 people, 7.8% of the state
Largest counties by land area
- Beaverhead County (Dillon): 5,542.7 sq mi
- Phillips County (Malta): 5,140.4 sq mi
- Flathead County (Kalispell): 5,087.2 sq mi
- Rosebud County (Forsyth): 5,008.1 sq mi
- Big Horn County (Hardin): 4,997.8 sq mi
Neighboring states
Figures: US Census Bureau 2020 Census populations and Gazetteer land areas. The full sortable list with seats and FIPS codes is on the Montana county map & list page.
Geography Notes: Montana
Montana Single-Zone Lambert Conformal Geodesy
A single statewide Lambert projection maintains scale distortion under 1:10,000 across 550 miles of longitude.
Standard parallels at 45°00'N and 49°00'N anchor the projection, eliminating coordinate breaks between mountain mining districts and prairie cattle counties.
The Montana State Library GIS Division and natural resource agencies rely on this unified datum to calculate acreage for forest compartments, grazing leases, and watershed basins without multi-zone translation.
EPSG:32100 maintains metric scale from Flathead Lake in the west to the North Dakota border near Glendive.
The Continental Divide & Prairie Agricultural Extents
Montana is divided physiographically into the Rocky Mountain west and the Great Plains east.
Western Montana contains deep mountain valleys, timber forests, and the consolidated city-county of Butte-Silver Bow alongside Missoula and Flathead counties.
Eastern Montana features open grassland plains drained by the Missouri and Yellowstone rivers, where Beaverhead County in the southwest stands as the largest county in the state.
Beaverhead County covers 5,542 square miles, making it larger than Connecticut, yet home to under 10,000 residents.
Curated Classroom Activities & Spatial Labs for Montana
Pedagogical lesson plans and spatial analysis activities designed specifically for printable vector maps of Montana:
Continental Divide & Missouri River Headwaters Lab
Objective: Trace the Rocky Mountain Continental Divide and map the headwaters of the Missouri River.
Materials: Printed blank map of Montana, blue and red fine-tip pens, hydrological atlas.
- Draw the Continental Divide winding through western Montana from Glacier National Park south to Idaho.
- Trace the Missouri River starting at Three Forks in Gallatin County and flowing east across northern Montana.
- Locate Lewis and Clark County (Helena) as the state capital, established during the 1864 gold rush.
Montana County Scale & Public Land Mapping
Objective: Analyze the land area of Montana counties and investigate federal land management.
Materials: Printed Montana county outline map, colored pencils.
- Highlight Beaverhead County, noting it as the largest county in Montana by land area.
- Shade Yellowstone National Park overlapping Park and Gallatin counties along the Wyoming border.
- Identify Petroleum County, the least populous county in Montana with under 500 residents.
The 6 Synchronized Variants Explained
We generate 6 synchronized variations of Montana from the same master vector dataset. Each variant is aligned to identical coordinate geometry:
1. Blank Boundary Outline
The foundational boundary outline of Montana. Rendered with a clean exterior stroke and zero fill—the optimal version for in-class labeling exams, custom cartographic overlays, or clean graphic design.
2. With Subdivisions (56 Counties)
Displays the exterior boundary plus internal administrative borders for all 56 counties. Each subdivision possesses a unique SVG element ID for direct styling and choropleth shading in vector editors.
3. Labeled with True Centroids
Features authentic typographic labels positioned at each administrative territory's mathematical center of mass. Perfect as a master grading answer key or self-study reference sheet.
4. Adjacent-Contrast Color Fill
Filled using an adjacency-contrast pastel palette so neighboring jurisdictions never blend together. Excellent for tactile visual discrimination and regional geography units.
5. With Capital City (Helena)
Pinpoints the official capital city of Helena using a high-visibility star marker and typographic callout, positioned at precise geodetic coordinates.
6. High-Contrast Printer B&W
Optimized specifically for monochrome desktop laser and inkjet printers. Uses pure black vector paths (#000000) and ultra-clean white fills to prevent ink-bleeding and toner smudging.
Tools to Use With This Map
- Interactive US county mapZoom into county lines on a live map.
- What county am I in?Find your county from your device location.
- True size comparisonDrag Montana over other places to compare real areas.
- Map area calculatorDraw a shape and measure its area on the WGS84 ellipsoid.
- Color a mapShade regions online and download your own map.
Montana County Map & Full List
See 2020 Census populations, seats, land areas and FIPS codes for every county in Montana, with an on-page map and CSV export.
Need Definitions for Map Projections, SVG Vectors, or Centroids?
Explore our centralized Cartography Glossary for detailed definitions of national and global geodetic datums, equal-area vs. conformal projections, TopoJSON topological arcs, and choropleth classification standards.
Frequently Asked Questions About Montana Blank Maps
Authoritative answers to common questions regarding printing, licensing, vector customization, and curriculum use:
What is the largest county by land area in Montana?▼
Beaverhead County in southwestern Montana (seat: Dillon) is the largest county by land area at 5,542 square miles.
Why does Montana use a single State Plane coordinate zone?▼
Montana adopted a single-zone Lambert Conformal Conic projection (EPSG:32100) to allow statewide mapping and GIS modeling across all 56 counties without artificial coordinate boundaries.
Which Montana county has the smallest population?▼
Petroleum County in central Montana had a 2020 Census population of 496 residents, served by the county seat of Winnett.