Ranking of Montana Counties By Population in 2016
Updated on January 28, 2024.
Based on the US Census Vintage data estimates, in 2016, the Population for Montana was 1.04M. Among all Montana counties, Yellowstone County had the highest population (158.07K), followed by Missoula County (116.59K), and Gallatin County (105.00K).
The chart below shows the top 10 counties, and the table below shows the ranking of all Montana counties.
You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.
Related Topics: Montana Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2016 Census.
See this for other years:
Ranking of Montana Counties By Population in 2016
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| Rank | County | Population |
|---|---|---|
| 1 | Yellowstone County | 158066 |
| 2 | Missoula County | 116587 |
| 3 | Gallatin County | 104999 |
| 4 | Flathead County | 97901 |
| 5 | Cascade County | 81655 |
| 6 | Lewis and Clark County | 67001 |
| 7 | Ravalli County | 41975 |
| 8 | Silver Bow County | 34768 |
| 9 | Lake County | 29722 |
| 10 | Lincoln County | 19332 |
| 11 | Hill County | 16440 |
| 12 | Park County | 16138 |
| 13 | Glacier County | 13707 |
| 14 | Big Horn County | 13438 |
| 15 | Custer County | 11844 |
| 16 | Jefferson County | 11774 |
| 17 | Sanders County | 11472 |
| 18 | Richland County | 11442 |
| 19 | Fergus County | 11333 |
| 20 | Roosevelt County | 11223 |
| 21 | Carbon County | 10480 |
| 22 | Beaverhead County | 9462 |
| 23 | Stillwater County | 9349 |
| 24 | Dawson County | 9279 |
| 25 | Rosebud County | 9263 |
| 26 | Deer Lodge County | 9071 |
| 27 | Madison County | 8074 |
| 28 | Valley County | 7548 |
| 29 | Powell County | 6837 |
| 30 | Blaine County | 6716 |
| 31 | Pondera County | 6024 |
| 32 | Teton County | 6017 |
| 33 | Broadwater County | 5787 |
| 34 | Chouteau County | 5780 |
| 35 | Toole County | 4962 |
| 36 | Musselshell County | 4640 |
| 37 | Mineral County | 4129 |
| 38 | Phillips County | 4121 |
| 39 | Sweet Grass County | 3610 |
| 40 | Sheridan County | 3609 |
| 41 | Granite County | 3276 |
| 42 | Fallon County | 3097 |
| 43 | Liberty County | 2413 |
| 44 | Wheatland County | 2123 |
| 45 | Judith Basin County | 1944 |
| 46 | Meagher County | 1851 |
| 47 | Powder River County | 1747 |
| 48 | Daniels County | 1730 |
| 49 | McCone County | 1729 |
| 50 | Garfield County | 1295 |
| 51 | Carter County | 1175 |
| 52 | Prairie County | 1159 |
| 53 | Wibaux County | 1043 |
| 54 | Golden Valley County | 811 |
| 55 | Treasure County | 678 |
| 56 | Petroleum County | 491 |