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Montana / Counties by Population

Montana Counties by Population

The data is from the US Census. Below are 56 Montana counties ranked 1 through 56. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

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Rank County Population
1 Yellowstone County 158,437
2 Missoula County 116,130
3 Gallatin County 104,502
4 Flathead County 98,082
5 Cascade County 81,755
6 Lewis and Clark County 67,282
7 Ravalli County 42,088
8 Silver Bow County 34,553
9 Lake County 29,758
10 Lincoln County 19,259
11 Hill County 16,542
12 Park County 16,114
13 Glacier County 13,694
14 Big Horn County 13,343
15 Custer County 11,924
16 Jefferson County 11,853
17 Sanders County 11,534
18 Richland County 11,482
19 Fergus County 11,413
20 Roosevelt County 11,305
21 Carbon County 10,460
22 Stillwater County 9,406
23 Beaverhead County 9,401
24 Dawson County 9,327
25 Rosebud County 9,287
26 Deer Lodge County 9,085
27 Madison County 7,924
28 Valley County 7,539
29 Powell County 6,858
30 Blaine County 6,601
31 Pondera County 6,084
32 Teton County 6,056
33 Chouteau County 5,759
34 Broadwater County 5,747
35 Toole County 4,977
36 Musselshell County 4,589
37 Mineral County 4,184
38 Phillips County 4,133
39 Sheridan County 3,648
40 Sweet Grass County 3,623
41 Granite County 3,368
42 Fallon County 3,120
43 Liberty County 2,409
44 Wheatland County 2,117
45 Judith Basin County 1,940
46 Meagher County 1,827
47 Daniels County 1,755
48 Powder River County 1,746
49 McCone County 1,700
50 Garfield County 1,310
51 Carter County 1,203
52 Prairie County 1,182
53 Wibaux County 1,093
54 Golden Valley County 831
55 Treasure County 692
56 Petroleum County 489

United States Census Bureau / American FactFinder. "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2016". 2016 Population Estimates Program. Web. March 2017. http://factfinder2.census.gov.

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