Montana Net Migration Rate By County in 2018

Updated on January 22, 2024.

According to the US Census Bureau estimates, in 2018, the net migration rate per 1,000 population for Montana was 5.84. Madison County had the highest net migration rate per 1,000 population (36.76), followed by Broadwater County (21.9), and Powell County (21.74). On the other hand, Prairie County had the lowest net migration rate per 1,000 population (-29.73), followed by Dawson County (-29.69), and Fallon County (-29.31).

Net migration rate for a county refers to the difference between the number of migrants, both domestic and international, moving to the county and those leaving the county per 1,000 of the county's mid-year population. A positive rate is known as a net immigration rate, and a negative rate is known as a net emigration rate.

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

Hover over or click on the chart to see this information for each county. The data can also be filtered, sorted, and explored further in a table below.

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Montana Net Migration Rate By County in 2018
Montana Net Migration Rate By County in 2018
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County Net Migration Rate
Beaverhead -2.76
Big Horn -17.04
Blaine -0.15
Broadwater 21.9
Carbon 0.28
Carter 5.73
Cascade -1.92
Chouteau 1.57
Custer -12.27
Daniels -4.67
Dawson -29.69
Deer Lodge 10.61
Fallon -29.31
Fergus -15.2
Flathead 16.23
Gallatin 20.99
Garfield -12.59
Glacier 0.14
Golden Valley 9.74
Granite 8.66
Hill -16.88
Jefferson 15.83
Judith Basin 2.57
Lake 1.95
Lewis and Clark 9.52
Liberty 8.24
Lincoln 17.14
McCone -20.9
Madison 36.76
Meagher 0.54
Mineral 17.77
Missoula 5.83
Musselshell 5.19
Park 15.31
Petroleum 7.78
Phillips -12.98
Pondera -3.53
Powder River -13.8
Powell 21.74
Prairie -29.73
Ravalli 18.14
Richland -16.96
Roosevelt -15.38
Rosebud -26.49
Sanders 8.79
Sheridan -24.27
Silver Bow -1.32
Stillwater 9.31
Sweet Grass 8.14
Teton -0.49
Toole -11.13
Treasure -7.49
Valley -1.35
Wheatland 12.08
Wibaux 12.7
Yellowstone 2.9