Montana Population by County
year 2000
Montana Population by County
year 2000
Area
Population
Yellowstone County
129,352
Missoula County
95,802
Cascade County
80,357
Flathead County
74,471
Gallatin County
67,831
Lewis and Clark County
55,716
Ravalli County
36,070
Silver Bow County
34,606
Lake County
26,507
Lincoln County
18,837
Hill County
16,673
Park County
15,694
Glacier County
13,247
Big Horn County
12,671
Fergus County
11,893
Custer County
11,696
Roosevelt County
10,620
Sanders County
10,227
Jefferson County
10,049
Richland County
9,667
Carbon County
9,552
Deer Lodge County
9,417
Rosebud County
9,383
Beaverhead County
9,202
Dawson County
9,059
Stillwater County
8,195
Valley County
7,675
Powell County
7,180
Blaine County
7,009
Madison County
6,851
Teton County
6,445
Pondera County
6,424
Chouteau County
5,970
Toole County
5,267
Phillips County
4,601
Musselshell County
4,497
Broadwater County
4,385
Sheridan County
4,105
Mineral County
3,884
Sweet Grass County
3,609
Fallon County
2,837
Granite County
2,830
Judith Basin County
2,329
Wheatland County
2,259
Liberty County
2,158
Daniels County
2,017
McCone County
1,977
Meagher County
1,932
Powder River County
1,858
Carter County
1,360
Garfield County
1,279
Prairie County
1,199
Wibaux County
1,068
Golden Valley County
1,042
Treasure County
861
Petroleum County
493
