Blank map of Montana by county
All 56 counties of Montana, ready to print on Letter, Tabloid, A4 or A3, or to download as PNG and SVG. Free, no sign-up.
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Mapsfera · data US Census Bureau
Montana on the map
Montana has 56 counties; only 22 states have fewer. The largest is Beaverhead, with 5,543 sq mi of land, and the smallest is Silver Bow, with 718 sq mi: Beaverhead is about 8 times bigger.
The state capital, Helena, is in Lewis and Clark County. The capital version marks it on the map.
Yellowstone County is the most populous, with 172,692 people in 2025, or 15% of the state. The least populous is Petroleum, with 548. Since 2020, Broadwater has grown the fastest (+25.4%) and Roosevelt has lost the most (−5.2%).
What each county borders
Flathead borders the most counties in the state: 9 (Glacier, Lake, Lewis and Clark, Lincoln, Missoula, Pondera, Powell, Sanders, and Teton).
18 counties touch another state. 8 border Idaho: Beaverhead, Gallatin, Lincoln, Madison, Mineral, Missoula, Ravalli, and Sanders. 6 border Wyoming: Big Horn, Carbon, Carter, Gallatin, Park, and Powder River. 5 border North Dakota: Fallon, Richland, Roosevelt, Sheridan, and Wibaux. 2 border South Dakota: Carter and Fallon.
11 counties border Canada: Blaine, Daniels, Flathead, Glacier, Hill, Liberty, Lincoln, Phillips, Sheridan, Toole, and Valley.
None has a coastline: Montana is landlocked.
Number key
Numbers follow alphabetical order, from 1 (Beaverhead) to 56 (Yellowstone). Area is land area, without lakes or sea, and population is the Census estimate for July 1, 2025; “Borders” counts neighboring counties in the same state.
Show the whole table (56 rows)
| No. | County | Land area | Population (2025) | Borders |
|---|---|---|---|---|
| 1 | Beaverhead | 5,543 sq mi | 10,043 | 4 |
| 2 | Big Horn | 4,998 sq mi | 12,752 | 5 |
| 3 | Blaine | 4,228 sq mi | 6,860 | 4 |
| 4 | Broadwater | 1,192 sq mi | 8,493 | 4 |
| 5 | Carbon | 2,048 sq mi | 11,466 | 4 |
| 6 | Carter | 3,340 sq mi | 1,383 | 3 |
| 7 | Cascade | 2,698 sq mi | 85,029 | 5 |
| 8 | Chouteau | 3,973 sq mi | 5,865 | 8 |
| 9 | Custer | 3,783 sq mi | 12,034 | 6 |
| 10 | Daniels | 1,426 sq mi | 1,612 | 3 |
| 11 | Dawson | 2,372 sq mi | 8,692 | 4 |
| 12 | Deer Lodge | 737 sq mi | 9,709 | 6 |
| 13 | Fallon | 1,621 sq mi | 2,959 | 4 |
| 14 | Fergus | 4,339 sq mi | 11,825 | 8 |
| 15 | Flathead | 5,087 sq mi | 115,429 | 9 |
| 16 | Gallatin | 2,605 sq mi | 128,740 | 5 |
| 17 | Garfield | 4,677 sq mi | 1,148 | 7 |
| 18 | Glacier | 2,995 sq mi | 13,463 | 3 |
| 19 | Golden Valley | 1,174 sq mi | 844 | 6 |
| 20 | Granite | 1,727 sq mi | 3,658 | 4 |
| 21 | Hill | 2,899 sq mi | 16,167 | 3 |
| 22 | Jefferson | 1,657 sq mi | 13,329 | 7 |
| 23 | Judith Basin | 1,870 sq mi | 2,162 | 5 |
| 24 | Lake | 1,491 sq mi | 33,392 | 3 |
| 25 | Lewis and Clark | 3,458 sq mi | 75,331 | 7 |
| 26 | Liberty | 1,430 sq mi | 1,957 | 4 |
| 27 | Lincoln | 3,613 sq mi | 22,328 | 2 |
| 28 | Madison | 3,588 sq mi | 10,026 | 4 |
| 29 | McCone | 2,642 sq mi | 1,720 | 6 |
| 30 | Meagher | 2,392 sq mi | 2,137 | 8 |
| 31 | Mineral | 1,220 sq mi | 5,185 | 2 |
| 32 | Missoula | 2,593 sq mi | 123,513 | 7 |
| 33 | Musselshell | 1,869 sq mi | 5,582 | 5 |
| 34 | Park | 2,802 sq mi | 18,214 | 5 |
| 35 | Petroleum | 1,656 sq mi | 548 | 5 |
| 36 | Phillips | 5,140 sq mi | 4,203 | 5 |
| 37 | Pondera | 1,625 sq mi | 6,072 | 6 |
| 38 | Powder River | 3,298 sq mi | 1,781 | 4 |
| 39 | Powell | 2,326 sq mi | 7,157 | 6 |
| 40 | Prairie | 1,737 sq mi | 1,112 | 6 |
| 41 | Ravalli | 2,391 sq mi | 48,582 | 4 |
| 42 | Richland | 2,085 sq mi | 11,377 | 4 |
| 43 | Roosevelt | 2,355 sq mi | 10,242 | 5 |
| 44 | Rosebud | 5,008 sq mi | 8,253 | 8 |
| 45 | Sanders | 2,760 sq mi | 14,062 | 5 |
| 46 | Sheridan | 1,677 sq mi | 3,436 | 2 |
| 47 | Silver Bow | 718 sq mi | 36,118 | 4 |
| 48 | Stillwater | 1,797 sq mi | 9,445 | 5 |
| 49 | Sweet Grass | 1,856 sq mi | 3,762 | 5 |
| 50 | Teton | 2,272 sq mi | 6,496 | 5 |
| 51 | Toole | 1,915 sq mi | 5,211 | 3 |
| 52 | Treasure | 978 sq mi | 728 | 3 |
| 53 | Valley | 4,926 sq mi | 7,385 | 5 |
| 54 | Wheatland | 1,422 sq mi | 2,100 | 5 |
| 55 | Wibaux | 890 sq mi | 885 | 4 |
| 56 | Yellowstone | 2,633 sq mi | 172,692 | 7 |
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Frequently asked questions
How many counties does Montana have?
56 counties. Only 22 states have fewer.
What is the largest county in Montana?
Beaverhead, with 5,543 sq mi of land. The smallest is Silver Bow, with 718 sq mi.
What is the most populous county in Montana?
Yellowstone County, with an estimated 172,692 people in 2025, or 15% of the state.
What county is Helena in?
The state capital, Helena, is in Lewis and Clark County.
Which Montana counties border Canada?
11 counties: Blaine, Daniels, Flathead, Glacier, Hill, Liberty, Lincoln, Phillips, Sheridan, Toole, and Valley.
Can I use it in class?
Yes, it’s free. Print it, copy it and hand it out as many times as you like. If you post it on a blog or a class website, credit “Mapsfera · data US Census Bureau”.
How do I print it on US Letter paper?
Choose Letter in “Paper size” and click “Download PDF”. In the print window, pick Letter paper and 100% scale (“Actual size”). For a bigger map, choose Tabloid (11 × 17 in) or A3.
What order are the numbers in?
Alphabetical, from 1 to the last one. That makes the key easy to follow when you grade, and it’s the same key the worksheet’s answer page uses.
Sources
- Boundaries: U.S. Census Bureau, Cartographic Boundary Files 2025, counties at 1:500,000 (public domain)
- Land and water area: U.S. Census Bureau (TIGER/Line and 2025 Gazetteer); population: Vintage 2025 estimates (July 1, 2025)
- State capital: Natural Earth, Populated Places (public domain); which counties it spans, Census places
- Neighbors, coastline and borders: calculated from those boundaries (and checked against the Census county adjacency file)