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State of Montana Regional Analytics
  -- Population & Components of Change; 2010-15

Components of Change: 7/1/2010-6/30/2015
Natural Change 15,547
  equals Births 61,356
  less Deaths 45,809
Net Migration 25,893
  equals net International Migration 3,490
  plus net Domestic Migration 22,403

The population of the State of Montana changed from 990,643 on 2010 to 1,032,949 in 2015 -- a change of 42,306 (4.27%). This report provides a summary of how and why the population has changed during this period and what these factors suggest about future change.

Primary Contributing Factors to Change
The primary contributing factors resulting in population change are 1) natural change (births less deaths) and/or 2) net migration. Eight tables are presented below providing annual data for each component county of the state and state summary. The tables provide data on the total population, births, deaths, natural change (births less deaths), international migration, domestic migration and net migration.

From 2010 to 2015 (7/1/2010-6/30/2015), net migration (25,893) exceeded natural change (15,547); net migration has been the primary contributing factor for the state population change. Examine the state by county tables below to learn about how each county contributes to the state population growth or decline.

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Related Sections
  • State of the States -- all states interactive table
  • Metro S&O Reports -- all metros interactive table
  • CountyTrends 2010-2015 -- all counties interactive table
  • CountyTrends -- multi-sourced county data
  • Regional Data Analytics Main

Table 1. Population          
Area NameGeoIDItem201020112012201320142015Chg 10-15%Chg 10-15
Beaverhead County, MT30001P0000001 9,241 9,207 9,351 9,288 9,310 9,300 59 0.64
Big Horn County, MT30003P0000001 12,907 13,043 12,994 13,113 13,313 13,242 335 2.60
Blaine County, MT30005P0000001 6,490 6,562 6,643 6,574 6,635 6,577 87 1.34
Broadwater County, MT30007P0000001 5,626 5,720 5,749 5,670 5,631 5,689 63 1.12
Carbon County, MT30009P0000001 10,066 10,084 10,124 10,312 10,413 10,408 342 3.40
Carter County, MT30011P0000001 1,155 1,143 1,176 1,165 1,176 1,180 25 2.16
Cascade County, MT30013P0000001 81,533 81,772 81,767 82,367 82,268 82,278 745 0.91
Chouteau County, MT30015P0000001 5,818 5,810 5,936 5,863 5,900 5,767 -51 -0.88
Custer County, MT30017P0000001 11,692 11,766 11,839 11,917 12,068 12,135 443 3.79
Daniels County, MT30019P0000001 1,745 1,773 1,783 1,788 1,801 1,760 15 0.86
Dawson County, MT30021P0000001 8,938 9,013 9,247 9,399 9,543 9,625 687 7.69
Deer Lodge County, MT30023P0000001 9,299 9,262 9,223 9,280 9,152 9,139 -160 -1.72
Fallon County, MT30025P0000001 2,887 2,930 3,026 3,045 3,111 3,190 303 10.50
Fergus County, MT30027P0000001 11,588 11,507 11,450 11,524 11,433 11,427 -161 -1.39
Flathead County, MT30029P0000001 90,868 91,184 91,616 92,973 94,726 96,165 5,297 5.83
Gallatin County, MT30031P0000001 89,626 91,353 92,600 94,647 97,276 100,739 11,113 12.40
Garfield County, MT30033P0000001 1,187 1,278 1,265 1,283 1,308 1,314 127 10.70
Glacier County, MT30035P0000001 13,431 13,563 13,659 13,793 13,698 13,647 216 1.61
Golden Valley County, MT30037P0000001 883 840 842 858 852 827 -56 -6.34
Granite County, MT30039P0000001 3,072 3,145 3,108 3,131 3,215 3,240 168 5.47
Hill County, MT30041P0000001 16,147 16,405 16,435 16,605 16,599 16,572 425 2.63
Jefferson County, MT30043P0000001 11,393 11,433 11,382 11,497 11,552 11,645 252 2.21
Judith Basin County, MT30045P0000001 2,064 2,031 2,023 2,012 1,991 1,926 -138 -6.69
Lake County, MT30047P0000001 28,778 29,023 29,025 29,078 29,204 29,457 679 2.36
Lewis and Clark County, MT30049P0000001 63,605 64,258 64,857 65,346 65,904 66,418 2,813 4.42
Liberty County, MT30051P0000001 2,355 2,383 2,397 2,374 2,363 2,408 53 2.25
Lincoln County, MT30053P0000001 19,685 19,606 19,478 19,412 19,139 19,052 -633 -3.22
McCone County, MT30055P0000001 1,737 1,711 1,698 1,707 1,704 1,683 -54 -3.11
Madison County, MT30057P0000001 7,685 7,695 7,723 7,698 7,806 7,915 230 2.99
Meagher County, MT30059P0000001 1,889 1,890 1,903 1,921 1,865 1,830 -59 -3.12
Mineral County, MT30061P0000001 4,218 4,255 4,169 4,272 4,244 4,251 33 0.78
Missoula County, MT30063P0000001 109,455 110,160 111,077 111,731 112,681 114,181 4,726 4.32
Musselshell County, MT30065P0000001 4,546 4,749 4,682 4,637 4,604 4,582 36 0.79
Park County, MT30067P0000001 15,587 15,500 15,574 15,641 15,855 15,972 385 2.47
Petroleum County, MT30069P0000001 492 490 509 506 489 475 -17 -3.46
Phillips County, MT30071P0000001 4,258 4,198 4,120 4,163 4,186 4,169 -89 -2.09
Pondera County, MT30073P0000001 6,166 6,207 6,182 6,247 6,211 6,184 18 0.29
Powder River County, MT30075P0000001 1,730 1,752 1,758 1,751 1,778 1,773 43 2.49
Powell County, MT30077P0000001 7,017 7,078 7,087 6,965 6,906 6,840 -177 -2.52
Prairie County, MT30079P0000001 1,186 1,155 1,154 1,171 1,140 1,160 -26 -2.19
Ravalli County, MT30081P0000001 40,340 40,397 40,625 40,767 40,953 41,373 1,033 2.56
Richland County, MT30083P0000001 9,748 10,144 10,805 11,180 11,573 11,960 2,212 22.69
Roosevelt County, MT30085P0000001 10,443 10,531 10,891 11,122 11,340 11,476 1,033 9.89
Rosebud County, MT30087P0000001 9,249 9,349 9,371 9,307 9,335 9,398 149 1.61
Sanders County, MT30089P0000001 11,394 11,371 11,371 11,323 11,329 11,336 -58 -0.51
Sheridan County, MT30091P0000001 3,371 3,440 3,579 3,652 3,679 3,687 316 9.37
Silver Bow County, MT30093P0000001 34,230 34,374 34,484 34,536 34,730 34,622 392 1.15
Stillwater County, MT30095P0000001 9,116 9,167 9,199 9,301 9,287 9,486 370 4.06
Sweet Grass County, MT30097P0000001 3,623 3,593 3,598 3,674 3,666 3,634 11 0.30
Teton County, MT30099P0000001 6,079 6,085 6,070 6,063 6,046 6,104 25 0.41
Toole County, MT30101P0000001 5,342 5,170 5,231 5,127 5,135 5,087 -255 -4.77
Treasure County, MT30103P0000001 720 721 732 700 696 697 -23 -3.19
Valley County, MT30105P0000001 7,373 7,476 7,497 7,627 7,624 7,659 286 3.88
Wheatland County, MT30107P0000001 2,159 2,140 2,100 2,131 2,096 2,110 -49 -2.27
Wibaux County, MT30109P0000001 1,005 989 1,056 1,128 1,125 1,130 125 12.44
Yellowstone County, MT30111P0000001 148,406 149,865 151,917 154,040 155,588 157,048 8,642 5.82
Total P0000001 990,643 997,746 1,005,157 1,014,402 1,023,252 1,032,949 42,306 4.27
Table 2. Births          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Beaverhead County, MT30001B0000001 76 95 92 89 90 92 458 
Big Horn County, MT30003B0000001 284 252 268 254 306 299 1,379 
Blaine County, MT30005B0000001 88 111 117 100 114 109 551 
Broadwater County, MT30007B0000001 52 51 53 56 44 45 249 
Carbon County, MT30009B0000001 92 96 82 66 75 74 393 
Carter County, MT30011B0000001 12 10 10 11 21 20 72 
Cascade County, MT30013B0000001 1,244 1,197 1,179 1,181 1,178 1,177 5,912 
Chouteau County, MT30015B0000001 68 44 35 50 46 45 220 
Custer County, MT30017B0000001 136 152 139 176 149 159 775 
Daniels County, MT30019B0000001 24 18 17 20 22 24 101 
Dawson County, MT30021B0000001 128 129 99 110 125 124 587 
Deer Lodge County, MT30023B0000001 100 71 68 62 77 68 346 
Fallon County, MT30025B0000001 24 58 50 40 58 53 259 
Fergus County, MT30027B0000001 160 112 105 128 118 121 584 
Flathead County, MT30029B0000001 1,064 1,100 1,066 1,103 1,145 1,166 5,580 
Gallatin County, MT30031B0000001 1,160 1,040 1,103 1,121 1,185 1,199 5,648 
Garfield County, MT30033B0000001 12 15 14 12 11 12 64 
Glacier County, MT30035B0000001 172 275 235 255 249 247 1,261 
Golden Valley County, MT30037B0000001 0 5 7 9 5 8 34 
Granite County, MT30039B0000001 12 25 19 15 20 22 101 
Hill County, MT30041B0000001 288 271 303 303 310 309 1,496 
Jefferson County, MT30043B0000001 88 87 73 103 77 90 430 
Judith Basin County, MT30045B0000001 20 16 15 15 15 15 76 
Lake County, MT30047B0000001 328 354 385 390 364 375 1,868 
Lewis and Clark County, MT30049B0000001 800 755 730 753 768 779 3,785 
Liberty County, MT30051B0000001 24 26 19 25 21 24 115 
Lincoln County, MT30053B0000001 180 169 195 187 178 173 902 
McCone County, MT30055B0000001 20 13 8 15 17 20 73 
Madison County, MT30057B0000001 52 68 57 63 47 54 289 
Meagher County, MT30059B0000001 12 25 22 20 16 13 96 
Mineral County, MT30061B0000001 64 45 49 44 41 44 223 
Missoula County, MT30063B0000001 1,288 1,200 1,214 1,221 1,281 1,280 6,196 
Musselshell County, MT30065B0000001 40 50 43 36 40 37 206 
Park County, MT30067B0000001 140 160 129 145 148 149 731 
Petroleum County, MT30069B0000001 4 3 4 4 3 2 16 
Phillips County, MT30071B0000001 24 46 43 46 63 63 261 
Pondera County, MT30073B0000001 52 78 72 71 74 77 372 
Powder River County, MT30075B0000001 16 6 11 9 9 10 45 
Powell County, MT30077B0000001 56 58 63 44 41 43 249 
Prairie County, MT30079B0000001 8 10 16 11 13 13 63 
Ravalli County, MT30081B0000001 464 377 380 375 387 372 1,891 
Richland County, MT30083B0000001 124 130 144 152 179 185 790 
Roosevelt County, MT30085B0000001 232 199 223 235 264 252 1,173 
Rosebud County, MT30087B0000001 168 139 170 180 172 176 837 
Sanders County, MT30089B0000001 96 83 88 111 118 126 526 
Sheridan County, MT30091B0000001 16 32 39 40 35 41 187 
Silver Bow County, MT30093B0000001 372 396 428 388 376 405 1,993 
Stillwater County, MT30095B0000001 120 80 80 83 99 94 436 
Sweet Grass County, MT30097B0000001 60 26 26 38 26 30 146 
Teton County, MT30099B0000001 64 72 75 78 81 82 388 
Toole County, MT30101B0000001 64 66 55 40 63 57 281 
Treasure County, MT30103B0000001 8 7 7 7 8 8 37 
Valley County, MT30105B0000001 72 82 66 103 79 93 423 
Wheatland County, MT30107B0000001 16 24 25 22 24 25 120 
Wibaux County, MT30109B0000001 4 8 7 14 16 21 66 
Yellowstone County, MT30111B0000001 1,980 1,982 2,015 1,978 2,029 1,992 9,996 
Total B0000001 12,272 11,999 12,037 12,207 12,520 12,593 61,356 
Table 3. Deaths          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Beaverhead County, MT30001D0000001 36 78 70 75 96 91 410 
Big Horn County, MT30003D0000001 100 102 121 131 136 151 641 
Blaine County, MT30005D0000001 24 71 78 59 64 67 339 
Broadwater County, MT30007D0000001 24 54 55 65 35 42 251 
Carbon County, MT30009D0000001 168 93 100 86 78 73 430 
Carter County, MT30011D0000001 0 15 20 8 14 14 71 
Cascade County, MT30013D0000001 924 820 790 794 804 748 3,956 
Chouteau County, MT30015D0000001 96 41 55 65 66 65 292 
Custer County, MT30017D0000001 164 142 137 161 120 148 708 
Daniels County, MT30019D0000001 48 31 13 19 29 18 110 
Dawson County, MT30021D0000001 76 114 104 111 76 83 488 
Deer Lodge County, MT30023D0000001 160 127 134 119 107 118 605 
Fallon County, MT30025D0000001 8 36 27 39 20 25 147 
Fergus County, MT30027D0000001 208 156 172 149 153 143 773 
Flathead County, MT30029D0000001 756 745 787 821 830 849 4,032 
Gallatin County, MT30031D0000001 592 517 495 537 516 531 2,596 
Garfield County, MT30033D0000001 20 10 8 16 5 13 52 
Glacier County, MT30035D0000001 200 126 147 128 154 155 710 
Golden Valley County, MT30037D0000001 20 10 9 13 9 6 47 
Granite County, MT30039D0000001 36 35 33 34 25 31 158 
Hill County, MT30041D0000001 144 144 141 165 120 142 712 
Jefferson County, MT30043D0000001 124 89 98 110 88 112 497 
Judith Basin County, MT30045D0000001 8 27 24 18 14 13 96 
Lake County, MT30047D0000001 188 275 241 298 271 295 1,380 
Lewis and Clark County, MT30049D0000001 704 535 544 526 569 594 2,768 
Liberty County, MT30051D0000001 28 24 28 21 18 20 111 
Lincoln County, MT30053D0000001 128 224 244 236 234 242 1,180 
McCone County, MT30055D0000001 4 22 21 12 17 16 88 
Madison County, MT30057D0000001 32 83 71 78 60 57 349 
Meagher County, MT30059D0000001 44 31 24 28 22 21 126 
Mineral County, MT30061D0000001 64 49 45 49 38 42 223 
Missoula County, MT30063D0000001 860 803 760 830 827 816 4,036 
Musselshell County, MT30065D0000001 16 63 60 50 45 52 270 
Park County, MT30067D0000001 144 140 150 133 144 154 721 
Petroleum County, MT30069D0000001 12 1 6 5 2 0 14 
Phillips County, MT30071D0000001 44 65 55 61 47 41 269 
Pondera County, MT30073D0000001 52 66 70 73 63 60 332 
Powder River County, MT30075D0000001 24 26 24 21 13 13 97 
Powell County, MT30077D0000001 108 74 69 81 61 75 360 
Prairie County, MT30079D0000001 36 18 16 22 15 10 81 
Ravalli County, MT30081D0000001 492 405 384 424 434 431 2,078 
Richland County, MT30083D0000001 64 83 114 94 94 90 475 
Roosevelt County, MT30085D0000001 156 116 112 126 192 193 739 
Rosebud County, MT30087D0000001 88 83 63 103 67 87 403 
Sanders County, MT30089D0000001 68 132 122 138 135 119 646 
Sheridan County, MT30091D0000001 84 66 47 58 54 47 272 
Silver Bow County, MT30093D0000001 480 401 392 402 398 404 1,997 
Stillwater County, MT30095D0000001 44 84 81 91 90 85 431 
Sweet Grass County, MT30097D0000001 56 50 34 47 33 32 196 
Teton County, MT30099D0000001 96 65 61 73 61 60 320 
Toole County, MT30101D0000001 20 57 45 41 44 36 223 
Treasure County, MT30103D0000001 12 6 9 5 10 6 36 
Valley County, MT30105D0000001 44 89 73 101 72 62 397 
Wheatland County, MT30107D0000001 36 19 29 18 21 20 107 
Wibaux County, MT30109D0000001 4 19 16 11 13 13 72 
Yellowstone County, MT30111D0000001 1,388 1,368 1,336 1,460 1,354 1,373 6,891 
Total D0000001 9,556 9,125 8,964 9,439 9,077 9,204 45,809 
Table 4. Natural Change          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Beaverhead County, MT30001NC000001 40 17 22 14 -6 1 48 
Big Horn County, MT30003NC000001 184 150 147 123 170 148 738 
Blaine County, MT30005NC000001 64 40 39 41 50 42 212 
Broadwater County, MT30007NC000001 28 -3 -2 -9 9 3 -2 
Carbon County, MT30009NC000001 -76 3 -18 -20 -3 1 -37 
Carter County, MT30011NC000001 12 -5 -10 3 7 6 1 
Cascade County, MT30013NC000001 320 377 389 387 374 429 1,956 
Chouteau County, MT30015NC000001 -28 3 -20 -15 -20 -20 -72 
Custer County, MT30017NC000001 -28 10 2 15 29 11 67 
Daniels County, MT30019NC000001 -24 -13 4 1 -7 6 -9 
Dawson County, MT30021NC000001 52 15 -5 -1 49 41 99 
Deer Lodge County, MT30023NC000001 -60 -56 -66 -57 -30 -50 -259 
Fallon County, MT30025NC000001 16 22 23 1 38 28 112 
Fergus County, MT30027NC000001 -48 -44 -67 -21 -35 -22 -189 
Flathead County, MT30029NC000001 308 355 279 282 315 317 1,548 
Gallatin County, MT30031NC000001 568 523 608 584 669 668 3,052 
Garfield County, MT30033NC000001 -8 5 6 -4 6 -1 12 
Glacier County, MT30035NC000001 -28 149 88 127 95 92 551 
Golden Valley County, MT30037NC000001 -20 -5 -2 -4 -4 2 -13 
Granite County, MT30039NC000001 -24 -10 -14 -19 -5 -9 -57 
Hill County, MT30041NC000001 144 127 162 138 190 167 784 
Jefferson County, MT30043NC000001 -36 -2 -25 -7 -11 -22 -67 
Judith Basin County, MT30045NC000001 12 -11 -9 -3 1 2 -20 
Lake County, MT30047NC000001 140 79 144 92 93 80 488 
Lewis and Clark County, MT30049NC000001 96 220 186 227 199 185 1,017 
Liberty County, MT30051NC000001 -4 2 -9 4 3 4 4 
Lincoln County, MT30053NC000001 52 -55 -49 -49 -56 -69 -278 
McCone County, MT30055NC000001 16 -9 -13 3 0 4 -15 
Madison County, MT30057NC000001 20 -15 -14 -15 -13 -3 -60 
Meagher County, MT30059NC000001 -32 -6 -2 -8 -6 -8 -30 
Mineral County, MT30061NC000001 0 -4 4 -5 3 2 0 
Missoula County, MT30063NC000001 428 397 454 391 454 464 2,160 
Musselshell County, MT30065NC000001 24 -13 -17 -14 -5 -15 -64 
Park County, MT30067NC000001 -4 20 -21 12 4 -5 10 
Petroleum County, MT30069NC000001 -8 2 -2 -1 1 2 2 
Phillips County, MT30071NC000001 -20 -19 -12 -15 16 22 -8 
Pondera County, MT30073NC000001 0 12 2 -2 11 17 40 
Powder River County, MT30075NC000001 -8 -20 -13 -12 -4 -3 -52 
Powell County, MT30077NC000001 -52 -16 -6 -37 -20 -32 -111 
Prairie County, MT30079NC000001 -28 -8 0 -11 -2 3 -18 
Ravalli County, MT30081NC000001 -28 -28 -4 -49 -47 -59 -187 
Richland County, MT30083NC000001 60 47 30 58 85 95 315 
Roosevelt County, MT30085NC000001 76 83 111 109 72 59 434 
Rosebud County, MT30087NC000001 80 56 107 77 105 89 434 
Sanders County, MT30089NC000001 28 -49 -34 -27 -17 7 -120 
Sheridan County, MT30091NC000001 -68 -34 -8 -18 -19 -6 -85 
Silver Bow County, MT30093NC000001 -108 -5 36 -14 -22 1 -4 
Stillwater County, MT30095NC000001 76 -4 -1 -8 9 9 5 
Sweet Grass County, MT30097NC000001 4 -24 -8 -9 -7 -2 -50 
Teton County, MT30099NC000001 -32 7 14 5 20 22 68 
Toole County, MT30101NC000001 44 9 10 -1 19 21 58 
Treasure County, MT30103NC000001 -4 1 -2 2 -2 2 1 
Valley County, MT30105NC000001 28 -7 -7 2 7 31 26 
Wheatland County, MT30107NC000001 -20 5 -4 4 3 5 13 
Wibaux County, MT30109NC000001 0 -11 -9 3 3 8 -6 
Yellowstone County, MT30111NC000001 592 614 679 518 675 619 3,105 
Total NC000001 2,716 2,874 3,073 2,768 3,443 3,389 15,547 
Table 5. International Migration          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Beaverhead County, MT30001MI000001 4 7 5 6 6 7 31 
Big Horn County, MT30003MI000001 4 5 0 1 3 3 12 
Blaine County, MT30005MI000001 0 0 2 3 4 4 13 
Broadwater County, MT30007MI000001 0 -2 -1 -1 -1 -1 -6 
Carbon County, MT30009MI000001 0 -1 3 3 3 3 11 
Carter County, MT30011MI000001 0 0 0 0 0 0 0 
Cascade County, MT30013MI000001 224 63 253 140 109 146 711 
Chouteau County, MT30015MI000001 4 7 7 8 8 8 38 
Custer County, MT30017MI000001 4 5 0 0 0 0 5 
Daniels County, MT30019MI000001 0 1 1 1 1 1 5 
Dawson County, MT30021MI000001 0 -2 -1 0 0 0 -3 
Deer Lodge County, MT30023MI000001 0 -2 -1 -1 -1 -1 -6 
Fallon County, MT30025MI000001 0 0 0 0 0 0 0 
Fergus County, MT30027MI000001 4 7 9 9 9 9 43 
Flathead County, MT30029MI000001 68 57 16 22 27 28 150 
Gallatin County, MT30031MI000001 124 94 83 96 110 109 492 
Garfield County, MT30033MI000001 0 0 0 0 0 0 0 
Glacier County, MT30035MI000001 28 21 14 17 20 20 92 
Golden Valley County, MT30037MI000001 0 0 0 0 0 0 0 
Granite County, MT30039MI000001 0 2 2 2 2 2 10 
Hill County, MT30041MI000001 12 12 13 13 14 14 66 
Jefferson County, MT30043MI000001 8 5 3 3 3 3 17 
Judith Basin County, MT30045MI000001 0 0 0 0 0 0 0 
Lake County, MT30047MI000001 8 9 42 47 53 53 204 
Lewis and Clark County, MT30049MI000001 44 43 51 33 40 39 206 
Liberty County, MT30051MI000001 4 3 4 4 4 4 19 
Lincoln County, MT30053MI000001 4 4 3 3 4 4 18 
McCone County, MT30055MI000001 0 0 0 0 0 0 0 
Madison County, MT30057MI000001 0 0 0 0 0 0 0 
Meagher County, MT30059MI000001 0 2 3 4 4 4 17 
Mineral County, MT30061MI000001 0 0 0 0 0 0 0 
Missoula County, MT30063MI000001 96 108 85 100 116 114 523 
Musselshell County, MT30065MI000001 0 6 1 1 1 1 10 
Park County, MT30067MI000001 8 1 -3 -3 -3 -3 -11 
Petroleum County, MT30069MI000001 0 0 0 0 0 0 0 
Phillips County, MT30071MI000001 0 2 2 2 2 2 10 
Pondera County, MT30073MI000001 20 10 12 14 15 15 66 
Powder River County, MT30075MI000001 0 0 0 0 0 0 0 
Powell County, MT30077MI000001 0 0 0 0 0 0 0 
Prairie County, MT30079MI000001 0 1 1 1 1 1 5 
Ravalli County, MT30081MI000001 32 33 13 17 19 19 101 
Richland County, MT30083MI000001 4 -1 -3 -2 -2 -2 -10 
Roosevelt County, MT30085MI000001 4 0 0 0 0 0 0 
Rosebud County, MT30087MI000001 4 2 0 0 0 0 2 
Sanders County, MT30089MI000001 4 9 3 3 4 4 23 
Sheridan County, MT30091MI000001 0 1 0 1 1 1 4 
Silver Bow County, MT30093MI000001 44 39 52 56 62 62 271 
Stillwater County, MT30095MI000001 0 0 0 0 0 0 0 
Sweet Grass County, MT30097MI000001 0 0 1 1 1 1 4 
Teton County, MT30099MI000001 0 6 2 3 3 3 17 
Toole County, MT30101MI000001 0 0 -1 -1 -1 -1 -4 
Treasure County, MT30103MI000001 0 0 0 0 0 0 0 
Valley County, MT30105MI000001 0 1 2 4 4 4 15 
Wheatland County, MT30107MI000001 0 0 0 0 0 0 0 
Wibaux County, MT30109MI000001 0 0 0 0 0 0 0 
Yellowstone County, MT30111MI000001 48 50 64 61 73 71 319 
Total MI000001 808 608 742 671 718 751 3,490 
Table 6. Domestic Migration          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Beaverhead County, MT30001MD000001 -48 -68 114 -94 25 -29 -52 
Big Horn County, MT30003MD000001 -4 -24 -199 2 27 -207 -401 
Blaine County, MT30005MD000001 -52 33 41 -113 8 -87 -118 
Broadwater County, MT30007MD000001 32 95 31 -72 -48 64 70 
Carbon County, MT30009MD000001 28 18 52 200 105 20 395 
Carter County, MT30011MD000001 -28 -8 42 -10 0 -3 21 
Cascade County, MT30013MD000001 264 -150 -656 39 -540 -611 -1,918 
Chouteau County, MT30015MD000001 48 -23 136 -66 48 -104 -9 
Custer County, MT30017MD000001 8 67 74 57 119 55 372 
Daniels County, MT30019MD000001 4 33 4 3 17 -34 23 
Dawson County, MT30021MD000001 -140 57 235 174 88 53 607 
Deer Lodge County, MT30023MD000001 92 16 29 106 -102 30 79 
Fallon County, MT30025MD000001 -28 20 72 24 24 53 193 
Fergus County, MT30027MD000001 64 -45 0 95 -66 -3 -19 
Flathead County, MT30029MD000001 -636 -39 152 1,045 1,299 1,002 3,459 
Gallatin County, MT30031MD000001 -216 1,047 551 1,362 1,755 2,643 7,358 
Garfield County, MT30033MD000001 -80 72 -18 21 16 15 106 
Glacier County, MT30035MD000001 132 -46 -3 -11 -214 -161 -435 
Golden Valley County, MT30037MD000001 16 -40 5 23 -4 -23 -39 
Granite County, MT30039MD000001 8 56 -26 41 89 34 194 
Hill County, MT30041MD000001 48 117 -146 18 -213 -196 -420 
Jefferson County, MT30043MD000001 4 6 -30 133 65 110 284 
Judith Basin County, MT30045MD000001 -36 -36 4 -1 -34 -54 -121 
Lake County, MT30047MD000001 -4 137 -183 -92 -2 125 -15 
Lewis and Clark County, MT30049MD000001 700 418 362 191 306 291 1,568 
Liberty County, MT30051MD000001 68 23 18 -32 -21 38 26 
Lincoln County, MT30053MD000001 -48 -33 -81 -26 -213 -27 -380 
McCone County, MT30055MD000001 4 -21 3 12 -10 -22 -38 
Madison County, MT30057MD000001 -28 2 43 -2 108 106 257 
Meagher County, MT30059MD000001 28 1 13 21 -63 -25 -53 
Mineral County, MT30061MD000001 -12 20 -92 106 -30 13 17 
Missoula County, MT30063MD000001 88 228 381 158 393 829 1,989 
Musselshell County, MT30065MD000001 20 202 -51 -22 -31 -15 83 
Park County, MT30067MD000001 -200 -99 97 58 221 113 390 
Petroleum County, MT30069MD000001 0 -10 21 -1 -19 -14 -23 
Phillips County, MT30071MD000001 44 -41 -68 59 1 -37 -86 
Pondera County, MT30073MD000001 20 23 -40 56 -64 -65 -90 
Powder River County, MT30075MD000001 -32 29 19 12 27 -2 85 
Powell County, MT30077MD000001 16 78 18 -88 -37 -40 -69 
Prairie County, MT30079MD000001 56 -30 -1 30 -30 21 -10 
Ravalli County, MT30081MD000001 516 48 221 148 162 398 977 
Richland County, MT30083MD000001 -44 343 617 344 294 317 1,915 
Roosevelt County, MT30085MD000001 -4 -2 244 125 144 75 586 
Rosebud County, MT30087MD000001 -24 36 -84 -147 -74 -18 -287 
Sanders County, MT30089MD000001 -112 23 34 -19 11 -5 44 
Sheridan County, MT30091MD000001 16 92 143 93 42 10 380 
Silver Bow County, MT30093MD000001 144 111 25 -11 152 -173 104 
Stillwater County, MT30095MD000001 -68 54 35 111 -33 176 343 
Sweet Grass County, MT30097MD000001 -116 -13 13 86 1 -24 63 
Teton County, MT30099MD000001 64 -8 -30 -18 -35 31 -60 
Toole County, MT30101MD000001 28 -193 51 -97 -14 -64 -317 
Treasure County, MT30103MD000001 12 0 13 -32 -3 -1 -23 
Valley County, MT30105MD000001 -4 106 27 135 -24 -5 239 
Wheatland County, MT30107MD000001 -16 -25 -38 31 -42 7 -67 
Wibaux County, MT30109MD000001 -48 -7 76 65 -11 -4 119 
Yellowstone County, MT30111MD000001 1,088 782 1,303 1,453 877 692 5,107 
Total MD000001 1,632 3,432 3,573 5,683 4,447 5,268 22,403 
Table 7. Net Migration          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Beaverhead County, MT30001MN000001 -44 -61 119 -88 31 -22 -21 
Big Horn County, MT30003MN000001 0 -19 -199 3 30 -204 -389 
Blaine County, MT30005MN000001 -52 33 43 -110 12 -83 -105 
Broadwater County, MT30007MN000001 32 93 30 -73 -49 63 64 
Carbon County, MT30009MN000001 28 17 55 203 108 23 406 
Carter County, MT30011MN000001 -28 -8 42 -10 0 -3 21 
Cascade County, MT30013MN000001 488 -87 -403 179 -431 -465 -1,207 
Chouteau County, MT30015MN000001 52 -16 143 -58 56 -96 29 
Custer County, MT30017MN000001 12 72 74 57 119 55 377 
Daniels County, MT30019MN000001 4 34 5 4 18 -33 28 
Dawson County, MT30021MN000001 -140 55 234 174 88 53 604 
Deer Lodge County, MT30023MN000001 92 14 28 105 -103 29 73 
Fallon County, MT30025MN000001 -28 20 72 24 24 53 193 
Fergus County, MT30027MN000001 68 -38 9 104 -57 6 24 
Flathead County, MT30029MN000001 -568 18 168 1,067 1,326 1,030 3,609 
Gallatin County, MT30031MN000001 -92 1,141 634 1,458 1,865 2,752 7,850 
Garfield County, MT30033MN000001 -80 72 -18 21 16 15 106 
Glacier County, MT30035MN000001 160 -25 11 6 -194 -141 -343 
Golden Valley County, MT30037MN000001 16 -40 5 23 -4 -23 -39 
Granite County, MT30039MN000001 8 58 -24 43 91 36 204 
Hill County, MT30041MN000001 60 129 -133 31 -199 -182 -354 
Jefferson County, MT30043MN000001 12 11 -27 136 68 113 301 
Judith Basin County, MT30045MN000001 -36 -36 4 -1 -34 -54 -121 
Lake County, MT30047MN000001 4 146 -141 -45 51 178 189 
Lewis and Clark County, MT30049MN000001 744 461 413 224 346 330 1,774 
Liberty County, MT30051MN000001 72 26 22 -28 -17 42 45 
Lincoln County, MT30053MN000001 -44 -29 -78 -23 -209 -23 -362 
McCone County, MT30055MN000001 4 -21 3 12 -10 -22 -38 
Madison County, MT30057MN000001 -28 2 43 -2 108 106 257 
Meagher County, MT30059MN000001 28 3 16 25 -59 -21 -36 
Mineral County, MT30061MN000001 -12 20 -92 106 -30 13 17 
Missoula County, MT30063MN000001 184 336 466 258 509 943 2,512 
Musselshell County, MT30065MN000001 20 208 -50 -21 -30 -14 93 
Park County, MT30067MN000001 -192 -98 94 55 218 110 379 
Petroleum County, MT30069MN000001 0 -10 21 -1 -19 -14 -23 
Phillips County, MT30071MN000001 44 -39 -66 61 3 -35 -76 
Pondera County, MT30073MN000001 40 33 -28 70 -49 -50 -24 
Powder River County, MT30075MN000001 -32 29 19 12 27 -2 85 
Powell County, MT30077MN000001 16 78 18 -88 -37 -40 -69 
Prairie County, MT30079MN000001 56 -29 0 31 -29 22 -5 
Ravalli County, MT30081MN000001 548 81 234 165 181 417 1,078 
Richland County, MT30083MN000001 -40 342 614 342 292 315 1,905 
Roosevelt County, MT30085MN000001 0 -2 244 125 144 75 586 
Rosebud County, MT30087MN000001 -20 38 -84 -147 -74 -18 -285 
Sanders County, MT30089MN000001 -108 32 37 -16 15 -1 67 
Sheridan County, MT30091MN000001 16 93 143 94 43 11 384 
Silver Bow County, MT30093MN000001 188 150 77 45 214 -111 375 
Stillwater County, MT30095MN000001 -68 54 35 111 -33 176 343 
Sweet Grass County, MT30097MN000001 -116 -13 14 87 2 -23 67 
Teton County, MT30099MN000001 64 -2 -28 -15 -32 34 -43 
Toole County, MT30101MN000001 28 -193 50 -98 -15 -65 -321 
Treasure County, MT30103MN000001 12 0 13 -32 -3 -1 -23 
Valley County, MT30105MN000001 -4 107 29 139 -20 -1 254 
Wheatland County, MT30107MN000001 -16 -25 -38 31 -42 7 -67 
Wibaux County, MT30109MN000001 -48 -7 76 65 -11 -4 119 
Yellowstone County, MT30111MN000001 1,136 832 1,367 1,514 950 763 5,426 
Total MN000001 2,440 4,040 4,315 6,354 5,165 6,019 25,893 
Table 8. Group Quarters          
Area NameGeoIDItem201020112012201320142015Chg10-15%Chg 10-15
Beaverhead County, MT30001GQ000001 444 444 444 444 444 443 -1 -0.23
Big Horn County, MT30003GQ000001 137 137 137 137 137 137 0 0.00
Blaine County, MT30005GQ000001 220 220 220 220 220 220 0 0.00
Broadwater County, MT30007GQ000001 52 52 52 52 52 52 0 0.00
Carbon County, MT30009GQ000001 53 53 53 53 53 53 0 0.00
Carter County, MT30011GQ000001 11 11 11 11 11 11 0 0.00
Cascade County, MT30013GQ000001 2,562 2,475 2,476 2,539 2,526 2,526 -36 -1.41
Chouteau County, MT30015GQ000001 135 135 135 135 135 135 0 0.00
Custer County, MT30017GQ000001 413 416 412 413 413 413 0 0.00
Daniels County, MT30019GQ000001 41 41 41 41 41 41 0 0.00
Dawson County, MT30021GQ000001 498 498 498 498 498 498 0 0.00
Deer Lodge County, MT30023GQ000001 811 838 840 849 846 846 35 4.32
Fallon County, MT30025GQ000001 34 34 34 34 34 34 0 0.00
Fergus County, MT30027GQ000001 465 465 465 465 465 465 0 0.00
Flathead County, MT30029GQ000001 992 992 992 992 992 992 0 0.00
Gallatin County, MT30031GQ000001 3,260 3,260 3,258 3,262 3,265 3,265 5 0.15
Garfield County, MT30033GQ000001 0 0 0 0 0 0 0..
Glacier County, MT30035GQ000001 690 690 690 690 690 690 0 0.00
Golden Valley County, MT30037GQ000001 89 89 89 89 89 89 0 0.00
Granite County, MT30039GQ000001 40 40 40 40 40 40 0 0.00
Hill County, MT30041GQ000001 593 593 593 593 593 593 0 0.00
Jefferson County, MT30043GQ000001 230 230 230 230 230 230 0 0.00
Judith Basin County, MT30045GQ000001 0 0 0 0 0 0 0..
Lake County, MT30047GQ000001 587 587 586 584 584 584 -3 -0.51
Lewis and Clark County, MT30049GQ000001 1,946 1,946 1,946 1,946 1,947 1,948 2 0.10
Liberty County, MT30051GQ000001 403 403 403 403 403 403 0 0.00
Lincoln County, MT30053GQ000001 209 209 209 209 209 209 0 0.00
McCone County, MT30055GQ000001 19 19 19 19 19 19 0 0.00
Madison County, MT30057GQ000001 163 163 163 163 163 163 0 0.00
Meagher County, MT30059GQ000001 174 174 174 174 174 174 0 0.00
Mineral County, MT30061GQ000001 22 22 22 22 22 22 0 0.00
Missoula County, MT30063GQ000001 3,634 3,631 3,628 3,636 3,638 3,636 2 0.06
Musselshell County, MT30065GQ000001 52 52 52 52 52 52 0 0.00
Park County, MT30067GQ000001 108 108 108 108 108 108 0 0.00
Petroleum County, MT30069GQ000001 0 0 0 0 0 0 0..
Phillips County, MT30071GQ000001 127 127 127 127 127 127 0 0.00
Pondera County, MT30073GQ000001 645 645 645 645 646 645 0 0.00
Powder River County, MT30075GQ000001 35 35 35 35 35 35 0 0.00
Powell County, MT30077GQ000001 1,523 1,560 1,549 1,524 1,538 1,537 14 0.92
Prairie County, MT30079GQ000001 21 21 21 21 21 21 0 0.00
Ravalli County, MT30081GQ000001 478 478 477 477 480 479 1 0.21
Richland County, MT30083GQ000001 34 34 34 34 34 34 0 0.00
Roosevelt County, MT30085GQ000001 186 186 186 186 186 186 0 0.00
Rosebud County, MT30087GQ000001 65 65 65 65 65 65 0 0.00
Sanders County, MT30089GQ000001 188 188 188 188 188 188 0 0.00
Sheridan County, MT30091GQ000001 85 85 85 85 85 85 0 0.00
Silver Bow County, MT30093GQ000001 998 998 998 991 998 998 0 0.00
Stillwater County, MT30095GQ000001 112 112 112 112 112 112 0 0.00
Sweet Grass County, MT30097GQ000001 45 45 45 45 45 45 0 0.00
Teton County, MT30099GQ000001 462 462 461 461 461 461 -1 -0.22
Toole County, MT30101GQ000001 766 726 766 761 766 766 0 0.00
Treasure County, MT30103GQ000001 0 0 0 0 0 0 0..
Valley County, MT30105GQ000001 126 126 126 126 126 126 0 0.00
Wheatland County, MT30107GQ000001 147 147 147 147 147 147 0 0.00
Wibaux County, MT30109GQ000001 24 24 24 24 24 24 0 0.00
Yellowstone County, MT30111GQ000001 3,695 3,698 3,701 3,695 3,695 3,695 0 0.00
Total GQ000001 28,849 28,789 28,812 28,852 28,872 28,867 18 0.06

Source: developed by ProximityOne based on Census Bureau and other data.
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