Find out about the list of all Montana (MT) counties in alphabetical order including their seats, size and numbers.
The U.S state of Montana has 56 counties. Here's the full list in alphabetical order:
B
Beaverhead County (MT)
Big Horn County (MT)
Blaine County (MT)
Broadwater County (MT)
C
Carbon County (MT)
Carter County (MT)
Cascade County (MT)
Chouteau County (MT)
Custer County (MT)
D
Daniels County (MT)
Dawson County (MT)
Deer Lodge County (MT)
F
Fallon County (MT)
Fergus County (MT)
Flathead County (MT)
G
Gallatin County (MT)
Garfield County (MT)
Glacier County (MT)
Golden Valley County (MT)
Granite County (MT)
H
Hill County (MT)
Jefferson County (MT)
Judith Basin County (MT)
L
Lake County (MT)
Lewis and Clark County (MT)
Liberty County (MT)
Lincoln County (MT)
M
Madison County (MT)
McCone County (MT)
Meagher County (MT)
Mineral County (MT)
Missoula County (MT)
Musselshell County (MT)
P
Park County (MT)
Petroleum County (MT)
Phillips County (MT)
Pondera County (MT)
Powder River County (MT)
Powell County (MT)
Prairie County (MT)
R
Ravalli County (MT)
Richland County (MT)
Roosevelt County (MT)
Rosebud County (MT)
S
Sanders County (MT)
Sheridan County (MT)
Silver Bow County (MT)
Stillwater County (MT)
Sweet Grass County (MT)
T
Teton County (MT)
Toole County (MT)
Treasure County (MT)
V
Valley County (MT)
W
Wheatland County (MT)
Wibaux County (MT)
Y
Yellowstone County (MT)
List of Montana counties in printable and scannable format
B
Beaverhead County (MT), Big Horn County (MT), Blaine County (MT), Broadwater County (MT)
C
Carbon County (MT), Carter County (MT), Cascade County (MT), Chouteau County (MT), Custer County (MT)
D
Daniels County (MT), Dawson County (MT), Deer Lodge County (MT)
F
Fallon County (MT), Fergus County (MT), Flathead County (MT)
G
Gallatin County (MT), Garfield County (MT), Glacier County (MT), Golden Valley County (MT), Granite County (MT)
H
Hill County (MT), Jefferson County (MT), Judith Basin County (MT)
L
Lake County (MT), Lewis and Clark County (MT), Liberty County (MT), Lincoln County (MT)
M
Madison County (MT), McCone County (MT), Meagher County (MT), Mineral County (MT), Missoula County (MT), Musselshell County (MT)
P
Park County (MT), Petroleum County (MT), Phillips County (MT), Pondera County (MT), Powder River County (MT), Powell County (MT), Prairie County (MT)
R
Ravalli County (MT), Richland County (MT), Roosevelt County (MT), Rosebud County (MT)
S
Sanders County (MT), Sheridan County (MT), Silver Bow County (MT), Stillwater County (MT), Sweet Grass County (MT)
T
Teton County (MT), Toole County (MT), Treasure County (MT)
V
Valley County (MT)
W
Wheatland County (MT), Wibaux County (MT)
Y
Yellowstone County (MT)
List of all Montana counties and their county size
Beaverhead County MT — 5,543 sq mi
Big Horn County MT — 4,995 sq mi
Blaine County MT — 4,239 sq mi Broadwater County MT — 1,239 sq mi
Carbon County MT — 2,062 sq mi
Carter County MT — 3,348 sq mi
Cascade County MT — 2,711 sq mi
Chouteau County MT — 3,973 sq mi
Custer County MT — 3,783 sq mi
Daniels County MT — 1,426 sq mi
Dawson County MT — 2,383 sq mi
Deer Lodge County MT — 741 sq mi
Fallon County MT — 1,623 sq mi
Fergus County MT — 4,350 sq mi
Flathead County MT — 5,098 sq mi
Gallatin County MT — 2,613 sq mi
Garfield County MT — 4,675 sq mi
Glacier County MT — 3,037 sq mi
Golden Valley County MT — 1,176 sq mi
Granite County MT — 1,734 sq mi
Hill County MT — 2,899 sq mi
Jefferson County MT — 1,657 sq mi
Judith Basin County MT — 1,870 sq mi
Lake County MT — 1,490 sq mi
Lewis and Clark County MT — 3,498 sq mi
Liberty County MT — 1,430 sq mi
Lincoln County MT — 3,675 sq mi
Madison County MT — 3,587 sq mi
McCone County MT — 2,643 sq mi
Meagher County MT — 2,395 sq mi
Mineral County MT — 1,223 sq mi
Missoula County MT — 2,618 sq mi
Musselshell County MT — 1,871 sq mi
Park County MT — 2,803 sq mi
Petroleum County MT — 1,655 sq mi
Phillips County MT — 5,212 sq mi
Pondera County MT — 1,640 sq mi
Powder River County MT — 3,297 sq mi
Powell County MT — 2,332 sq mi
Prairie County MT — 1,736 sq mi
Ravalli County MT — 2,400 sq mi
Richland County MT — 2,084 sq mi
Roosevelt County MT — 2,355 sq mi
Rosebud County MT — 5,010 sq mi
Sanders County MT — 2,790 sq mi
Sheridan County MT — 1,706 sq mi
Silver Bow County MT — 718 sq mi
Stillwater County MT — 1,805 sq mi
Sweet Grass County MT — 1,855 sq mi
Teton County MT — 2,293 sq mi
Toole County MT — 1,946 sq mi
Treasure County MT — 984 sq mi
Valley County MT — 5,062 sq mi
Wheatland County MT — 1,423 sq mi
Wibaux County MT — 890 sq mi
Yellowstone County MT — 2,635 sq mi
List of all Montana counties and their county seats
B
Beaverhead County MT — Dillon
Big Horn County MT — Hardin
Blaine County MT — Chinook
Broadwater County MT — Townsend
C
Carbon County MT — Red Lodge
Carter County MT — Ekalaka
Cascade County MT — Great Falls
Chouteau County MT — Fort Benton
Custer County MT — Miles City
D
Daniels County MT — Scobey
Dawson County MT — Glendive
Deer Lodge County MT (consolidated city-county) — Anaconda
F
Fallon County MT — Baker
Fergus County MT — Lewistown
Flathead County MT — Kalispell
G
Gallatin County MT — Bozeman
Garfield County MT — Jordan
Glacier County MT — Cut Bank
Golden Valley County MT — Ryegate
Granite County MT — Philipsburg
H
Hill County MT — Havre
J
Jefferson County MT — Boulder
Judith Basin County MT — Stanford
L
Lake County MT — Polson
Lewis and Clark County MT — Helena (state capital)
Liberty County MT — Chester
Lincoln County MT — Libby
M
Madison County MT — Virginia City
McCone County MT — Circle
Meagher County MT — White Sulphur Springs
Mineral County MT — Superior
Missoula County MT — Missoula
Musselshell County MT — Roundup
P
Park County MT — Livingston
Petroleum County MT — Winnett
Phillips County MT — Malta
Pondera County MT — Conrad
Powder River County MT — Broadus
Powell County MT — Deer Lodge
Prairie County MT — Terry
R
Ravalli County MT — Hamilton
Richland County MT — Sidney
Roosevelt County MT — Wolf Point
Rosebud County MT — Forsyth
S
Sanders County MT — Thompson Falls
Sheridan County MT — Plentywood
Silver Bow County MT (consolidated city-county) — Butte
Stillwater County MT — Columbus
Sweet Grass County MT — Big Timber
T
Teton County MT — Choteau
Toole County MT — Shelby
Treasure County MT — Hysham
V
Valley County MT — Glasgow
W
Wheatland County MT — Harlowton
Wibaux County MT — Wibaux
Y
Yellowstone County MT— Billings
List of all Montana counties by region
Northwest Montana
Lincoln County MT
Flathead County MT
Lake County MT
Sanders County MT
Mineral County MT
Missoula County MT
Ravalli County MT
North Central Montana
Glacier County MT
Toole County MT
Liberty County MT
Pondera County MT
Teton County MT
Chouteau County MT
Cascade County MT
Judith Basin County MT
Fergus County MT
Petroleum County MT
Northeast Montana
Hill County MT
Blaine County MT
Phillips County MT
Valley County MT
Daniels County MT
Sheridan County MT
Roosevelt County MT
Southwest Montana
Powell County MT
Lewis and Clark County MT
Granite County MT
Deer Lodge County MT
Jefferson County MT
Broadwater County MT
Silver Bow County MT
Beaverhead County MT
Madison County MT
Gallatin County MT
Park County MT
South Central Montana
Wheatland County MT
Golden Valley County MT
Musselshell County MT
Sweet Grass County MT
Stillwater County MT
Yellowstone County MT
Treasure County MT
Carbon County MT
Big Horn County MT
Southeast Montana
Garfield County MT
McCone County MT
Richland County MT
Dawson County MT
Rosebud County MT
Custer County MT
Prairie County MT
Wibaux County MT
Fallon County MT
Powder River County MT
Carter County MT
What is the largest county in Montana?
Montana’s largest county by area is Beaverhead County which covers 5,543 sq mi.
What is the smallest county in Montana
The smallest county in Montana by area is Silver Bow County which covers 718 sq mi).