Montana Population By County in 2014

Updated on January 27, 2024.

Based on the US Census Vintage data estimates, in 2014, the population of Montana was 1,022,657. Among all Montana counties, Yellowstone had the highest population (155,379), followed by Missoula (112,924), and Gallatin (97,629). Petroleum was the least populated county (489).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and by state for the United States.

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Montana Population By County in 2014
Montana Population By County in 2014
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County Population % of State Population
Beaverhead 9340 0.91
Big Horn 13341 1.31
Blaine 6710 0.66
Broadwater 5657 0.55
Carbon 10438 1.02
Carter 1150 0.11
Cascade 82118 8.03
Chouteau 5902 0.58
Custer 12023 1.18
Daniels 1798 0.18
Dawson 9518 0.93
Deer Lodge 9125 0.89
Fallon 3111 0.30
Fergus 11336 1.11
Flathead 94642 9.26
Gallatin 97629 9.55
Garfield 1274 0.13
Glacier 13711 1.34
Golden Valley 841 0.08
Granite 3144 0.31
Hill 16500 1.61
Jefferson 11505 1.13
Judith Basin 1985 0.19
Lake 29236 2.86
Lewis and Clark 65764 6.43
Liberty 2351 0.23
Lincoln 19208 1.88
McCone 1713 0.17
Madison 7832 0.77
Meagher 1857 0.18
Mineral 4196 0.41
Missoula 112924 11.04
Musselshell 4647 0.45
Park 15926 1.56
Petroleum 489 0.05
Phillips 4174 0.41
Pondera 6140 0.60
Powder River 1777 0.17
Powell 6876 0.67
Prairie 1125 0.11
Ravalli 40786 3.99
Richland 11555 1.13
Roosevelt 11283 1.10
Rosebud 9327 0.91
Sanders 11316 1.11
Sheridan 3661 0.36
Silver Bow 34801 3.40
Stillwater 9230 0.90
Sweet Grass 3637 0.36
Teton 6035 0.59
Toole 5121 0.50
Treasure 684 0.07
Valley 7636 0.75
Wheatland 2089 0.20
Wibaux 1084 0.11
Yellowstone 155379 15.19