| Area | 7/1/2008 | 7/1/2007 | 7/1/2006 | 7/1/2005 | 7/1/2004 | 7/1/2003 | 7/1/2002 | 7/1/2001 | 7/1/2000 | Census 2000 |
| Montana | 967,440 | 956,624 | 945,428 | 934,888 | 925,969 | 916,754 | 909,859 | 905,854 | 903,283 | 902,195 |
|---|---|---|---|---|---|---|---|---|---|---|
| Alberton town | 420 | 422 | 427 | 415 | 401 | 389 | 375 | 378 | 377 | 374 |
| Anaconda-Deer Lodge County | 8,843 | 8,838 | 8,828 | 8,990 | 9,002 | 8,981 | 9,094 | 9,221 | 9,385 | 9,417 |
| Bainville town | 146 | 147 | 147 | 150 | 150 | 148 | 149 | 152 | 153 | 153 |
| Baker city | 1,634 | 1,617 | 1,586 | 1,577 | 1,627 | 1,629 | 1,612 | 1,629 | 1,684 | 1,695 |
| Bearcreek town | 83 | 84 | 85 | 84 | 83 | 83 | 83 | 83 | 83 | 83 |
| Belgrade city | 8,185 | 8,036 | 7,631 | 7,336 | 7,298 | 7,046 | 6,746 | 6,414 | 5,935 | 5,728 |
| Belt town | 592 | 600 | 617 | 628 | 638 | 631 | 621 | 625 | 628 | 633 |
| Big Sandy town | 610 | 613 | 620 | 626 | 635 | 648 | 660 | 677 | 703 | 703 |
| Big Timber city | 1,796 | 1,795 | 1,735 | 1,710 | 1,723 | 1,683 | 1,699 | 1,675 | 1,670 | 1,650 |
| Billings city | 103,994 | 101,778 | 100,141 | 98,742 | 96,980 | 95,395 | 94,076 | 92,940 | 91,955 | 89,847 |
| Boulder city | 1,442 | 1,424 | 1,397 | 1,389 | 1,364 | 1,333 | 1,323 | 1,310 | 1,304 | 1,300 |
| Bozeman city | 39,442 | 38,037 | 37,038 | 35,089 | 33,663 | 31,919 | 30,372 | 29,261 | 28,418 | 27,509 |
| Bridger town | 725 | 729 | 732 | 740 | 743 | 744 | 746 | 747 | 745 | 745 |
| Broadus town | 456 | 457 | 467 | 458 | 473 | 487 | 489 | 487 | 498 | 451 |
| Broadview town | 151 | 150 | 150 | 150 | 149 | 150 | 150 | 150 | 150 | 150 |
| Brockton town | 238 | 240 | 242 | 246 | 246 | 244 | 245 | 249 | 251 | 245 |
| Browning town | 1,057 | 1,060 | 1,066 | 1,067 | 1,084 | 1,065 | 1,058 | 1,057 | 1,061 | 1,065 |
| Butte-Silver Bow (balance) | 32,119 | 31,919 | 31,957 | 32,062 | 32,186 | 32,368 | 32,661 | 33,016 | 33,803 | 33,892 |
| Cascade town | 773 | 784 | 806 | 821 | 826 | 817 | 804 | 809 | 812 | 819 |
| Chester town | 704 | 731 | 749 | 786 | 809 | 813 | 812 | 844 | 869 | 871 |
| Chinook city | 1,274 | 1,279 | 1,285 | 1,296 | 1,300 | 1,326 | 1,342 | 1,337 | 1,380 | 1,386 |
| Choteau city | 1,691 | 1,691 | 1,681 | 1,693 | 1,733 | 1,757 | 1,750 | 1,766 | 1,781 | 1,781 |
| Circle town | 542 | 555 | 556 | 565 | 572 | 579 | 592 | 610 | 640 | 644 |
| Clyde Park town | 347 | 346 | 342 | 343 | 331 | 328 | 310 | 310 | 310 | 310 |
| Colstrip city | 2,345 | 2,318 | 2,298 | 2,310 | 2,320 | 2,337 | 2,318 | 2,321 | 2,348 | 2,346 |
| Columbia Falls city | 5,261 | 5,120 | 4,865 | 4,635 | 4,378 | 4,169 | 4,050 | 3,976 | 3,892 | 3,645 |
| Columbus town | 1,959 | 1,927 | 1,893 | 1,860 | 1,862 | 1,856 | 1,836 | 1,812 | 1,761 | 1,748 |
| Conrad city | 2,501 | 2,531 | 2,537 | 2,553 | 2,576 | 2,630 | 2,670 | 2,713 | 2,733 | 2,753 |
| Culbertson town | 689 | 693 | 697 | 706 | 712 | 700 | 702 | 713 | 715 | 716 |
| Cut Bank city | 3,105 | 3,114 | 3,129 | 3,134 | 3,156 | 3,098 | 3,079 | 3,076 | 3,093 | 3,105 |
| Darby town | 863 | 852 | 838 | 821 | 804 | 777 | 744 | 722 | 715 | 710 |
| Deer Lodge city | 3,462 | 3,504 | 3,492 | 3,343 | 3,248 | 3,237 | 3,293 | 3,318 | 3,419 | 3,421 |
| Denton town | 278 | 277 | 279 | 279 | 284 | 286 | 291 | 295 | 301 | 301 |
| Dillon city | 4,193 | 4,133 | 4,130 | 4,061 | 4,086 | 4,072 | 4,130 | 4,159 | 4,261 | 3,752 |
| Dodson town | 102 | 103 | 104 | 106 | 110 | 111 | 114 | 118 | 121 | 122 |
| Drummond town | 315 | 317 | 321 | 324 | 319 | 320 | 322 | 323 | 319 | 318 |
| Dutton town | 354 | 356 | 357 | 362 | 371 | 379 | 378 | 384 | 388 | 389 |
| East Helena town | 2,114 | 2,085 | 2,049 | 1,847 | 1,796 | 1,688 | 1,654 | 1,657 | 1,659 | 1,642 |
| Ekalaka town | 370 | 378 | 379 | 381 | 391 | 393 | 401 | 407 | 406 | 410 |
| Ennis town | 1,057 | 1,030 | 994 | 967 | 918 | 884 | 865 | 858 | 863 | 840 |
| Eureka town | 1,013 | 1,008 | 998 | 1,002 | 997 | 996 | 993 | 998 | 1,015 | 1,017 |
| Fairfield town | 616 | 618 | 620 | 627 | 642 | 653 | 651 | 661 | 668 | 659 |
| Fairview town | 666 | 664 | 660 | 660 | 651 | 663 | 674 | 687 | 705 | 709 |
| Flaxville town | 70 | 70 | 72 | 75 | 77 | 80 | 82 | 86 | 87 | 87 |
| Forsyth city | 1,857 | 1,850 | 1,839 | 1,849 | 1,860 | 1,873 | 1,876 | 1,889 | 1,918 | 1,944 |
| Fort Benton city | 1,459 | 1,457 | 1,429 | 1,435 | 1,459 | 1,480 | 1,503 | 1,540 | 1,596 | 1,594 |
| Fort Peck town | 220 | 220 | 221 | 225 | 228 | 225 | 230 | 235 | 239 | 240 |
| Froid town | 192 | 194 | 196 | 189 | 191 | 189 | 190 | 193 | 195 | 195 |
| Fromberg town | 467 | 472 | 476 | 484 | 484 | 487 | 488 | 489 | 486 | 486 |
| Geraldine town | 243 | 245 | 247 | 250 | 255 | 260 | 266 | 273 | 284 | 284 |
| Glasgow city | 2,921 | 2,915 | 2,924 | 2,976 | 3,037 | 3,064 | 3,125 | 3,182 | 3,237 | 3,253 |
| Glendive city | 4,585 | 4,613 | 4,604 | 4,600 | 4,621 | 4,662 | 4,686 | 4,794 | 4,866 | 4,729 |
| Grass Range town | 141 | 141 | 142 | 142 | 144 | 145 | 147 | 149 | 151 | 149 |
| Great Falls city | 59,251 | 58,779 | 58,536 | 58,257 | 57,873 | 57,619 | 57,457 | 57,227 | 57,070 | 56,690 |
| Hamilton city | 4,817 | 4,693 | 4,569 | 4,378 | 4,304 | 4,148 | 3,937 | 3,836 | 3,764 | 3,705 |
| Hardin city | 3,487 | 3,458 | 3,422 | 3,433 | 3,465 | 3,426 | 3,429 | 3,438 | 3,404 | 3,384 |
| Harlem city | 787 | 792 | 796 | 804 | 806 | 821 | 824 | 817 | 844 | 848 |
| Harlowton city | 931 | 916 | 907 | 942 | 964 | 981 | 1,020 | 1,018 | 1,063 | 1,062 |
| Havre city | 9,575 | 9,605 | 9,527 | 9,384 | 9,377 | 9,383 | 9,422 | 9,506 | 9,600 | 9,621 |
| Helena city | 29,351 | 28,713 | 28,045 | 27,586 | 27,453 | 26,996 | 26,476 | 26,492 | 26,256 | 25,780 |
| Hingham town | 151 | 152 | 152 | 150 | 152 | 151 | 153 | 155 | 157 | 157 |
| Hobson city | 211 | 214 | 222 | 224 | 228 | 229 | 235 | 237 | 244 | 244 |
| Hot Springs town | 564 | 563 | 556 | 549 | 546 | 533 | 532 | 537 | 531 | 531 |
| Hysham town | 243 | 247 | 257 | 266 | 284 | 284 | 293 | 314 | 327 | 330 |
| Ismay town | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 |
| Joliet town | 625 | 614 | 599 | 591 | 577 | 574 | 576 | 577 | 575 | 575 |
| Jordan town | 336 | 342 | 341 | 332 | 345 | 351 | 355 | 359 | 361 | 364 |
| Judith Gap city | 143 | 140 | 139 | 145 | 149 | 151 | 158 | 157 | 163 | 164 |
| Kalispell city | 21,182 | 20,292 | 19,332 | 18,459 | 17,438 | 16,878 | 16,078 | 15,602 | 15,168 | 14,223 |
| Kevin town | 141 | 143 | 146 | 156 | 149 | 159 | 172 | 176 | 178 | 178 |
| Laurel city | 6,605 | 6,489 | 6,396 | 6,316 | 6,322 | 6,313 | 6,301 | 6,292 | 6,260 | 6,255 |
| Lavina town | 218 | 226 | 223 | 225 | 218 | 208 | 212 | 202 | 204 | 209 |
| Lewistown city | 5,954 | 5,935 | 5,962 | 5,958 | 6,050 | 6,084 | 6,153 | 6,209 | 6,322 | 5,813 |
| Libby city | 2,921 | 2,879 | 2,845 | 2,844 | 2,849 | 2,838 | 2,822 | 2,839 | 2,887 | 2,626 |
| Lima town | 228 | 227 | 228 | 229 | 230 | 232 | 235 | 238 | 242 | 242 |
| Livingston city | 7,500 | 7,409 | 7,253 | 7,131 | 7,062 | 7,058 | 7,090 | 7,040 | 7,065 | 6,851 |
| Lodge Grass town | 507 | 504 | 502 | 507 | 514 | 510 | 513 | 515 | 509 | 510 |
| Malta city | 1,801 | 1,813 | 1,821 | 1,861 | 1,913 | 1,936 | 1,982 | 2,047 | 2,096 | 2,120 |
| Manhattan town | 1,622 | 1,539 | 1,555 | 1,511 | 1,519 | 1,480 | 1,438 | 1,428 | 1,403 | 1,396 |
| Medicine Lake town | 213 | 217 | 220 | 225 | 235 | 237 | 247 | 257 | 267 | 269 |
| Melstone town | 136 | 135 | 135 | 133 | 134 | 133 | 133 | 133 | 136 | 136 |
| Miles City city | 8,102 | 8,104 | 8,040 | 8,097 | 8,213 | 8,191 | 8,283 | 8,299 | 8,473 | 8,487 |
| Missoula city | 68,202 | 67,141 | 65,885 | 64,389 | 63,123 | 61,774 | 60,306 | 58,939 | 57,725 | 57,053 |
| Moore town | 180 | 180 | 181 | 182 | 184 | 181 | 182 | 183 | 186 | 186 |
| Nashua town | 291 | 291 | 292 | 298 | 302 | 306 | 312 | 318 | 323 | 325 |
| Neihart town | 86 | 87 | 90 | 91 | 92 | 91 | 89 | 90 | 90 | 91 |
| Opheim town | 99 | 99 | 100 | 102 | 103 | 104 | 107 | 109 | 110 | 111 |
| Outlook town | 65 | 67 | 68 | 69 | 72 | 72 | 75 | 78 | 81 | 82 |
| Philipsburg town | 911 | 918 | 929 | 936 | 922 | 926 | 926 | 929 | 917 | 914 |
| Pinesdale town | 822 | 817 | 810 | 802 | 804 | 795 | 780 | 753 | 746 | 742 |
| Plains town | 1,244 | 1,243 | 1,229 | 1,214 | 1,209 | 1,157 | 1,145 | 1,149 | 1,134 | 1,126 |
| Plentywood city | 1,658 | 1,698 | 1,714 | 1,754 | 1,819 | 1,835 | 1,905 | 1,974 | 2,045 | 2,061 |
| Plevna town | 131 | 130 | 127 | 127 | 130 | 131 | 130 | 132 | 137 | 138 |
| Polson city | 5,228 | 5,089 | 4,985 | 4,849 | 4,706 | 4,553 | 4,369 | 4,278 | 4,205 | 4,041 |
| Poplar city | 866 | 870 | 879 | 894 | 894 | 886 | 891 | 904 | 910 | 911 |
| Red Lodge city | 2,450 | 2,446 | 2,403 | 2,365 | 2,306 | 2,259 | 2,245 | 2,220 | 2,185 | 2,177 |
| Rexford town | 149 | 148 | 147 | 148 | 147 | 147 | 146 | 147 | 149 | 151 |
| Richey town | 174 | 176 | 176 | 176 | 177 | 179 | 180 | 185 | 188 | 189 |
| Ronan city | 2,008 | 2,001 | 1,989 | 1,946 | 1,927 | 1,887 | 1,877 | 1,857 | 1,824 | 1,812 |
| Roundup city | 1,922 | 1,906 | 1,901 | 1,866 | 1,892 | 1,885 | 1,881 | 1,886 | 1,928 | 1,931 |
| Ryegate town | 280 | 291 | 286 | 290 | 280 | 268 | 272 | 260 | 262 | 268 |
| Saco town | 189 | 190 | 191 | 196 | 200 | 203 | 209 | 216 | 221 | 224 |
| Scobey city | 891 | 891 | 920 | 953 | 967 | 1,010 | 1,028 | 1,075 | 1,079 | 1,082 |
| Shelby city | 3,541 | 3,540 | 3,476 | 3,420 | 3,367 | 3,211 | 3,304 | 3,270 | 3,231 | 3,216 |
| Sheridan town | 704 | 697 | 679 | 672 | 658 | 652 | 662 | 657 | 661 | 659 |
| Sidney city | 4,782 | 4,739 | 4,693 | 4,665 | 4,632 | 4,710 | 4,784 | 4,873 | 4,995 | 4,774 |
| St. Ignatius town | 813 | 810 | 816 | 812 | 802 | 790 | 788 | 793 | 790 | 788 |
| Stanford town | 392 | 397 | 413 | 416 | 424 | 425 | 436 | 441 | 454 | 454 |
| Stevensville town | 1,984 | 1,964 | 1,879 | 1,824 | 1,809 | 1,775 | 1,716 | 1,633 | 1,574 | 1,553 |
| Sunburst town | 327 | 332 | 339 | 364 | 346 | 369 | 401 | 409 | 414 | 415 |
| Superior town | 873 | 876 | 894 | 895 | 875 | 876 | 866 | 874 | 893 | 893 |
| Terry town | 544 | 533 | 541 | 550 | 583 | 591 | 596 | 616 | 604 | 611 |
| Thompson Falls city | 1,423 | 1,420 | 1,404 | 1,385 | 1,378 | 1,344 | 1,341 | 1,339 | 1,323 | 1,321 |
| Three Forks city | 1,928 | 1,915 | 1,923 | 1,903 | 1,919 | 1,853 | 1,789 | 1,761 | 1,736 | 1,728 |
| Townsend city | 2,030 | 1,977 | 1,940 | 1,915 | 1,921 | 1,881 | 1,867 | 1,870 | 1,864 | 1,867 |
| Troy city | 985 | 981 | 963 | 960 | 955 | 954 | 951 | 956 | 969 | 957 |
| Twin Bridges town | 428 | 423 | 412 | 407 | 398 | 396 | 402 | 399 | 401 | 400 |
| Valier town | 454 | 460 | 461 | 463 | 467 | 474 | 481 | 490 | 494 | 498 |
| Virginia City town | 144 | 140 | 133 | 132 | 129 | 128 | 130 | 129 | 130 | 130 |
| Walkerville town | 684 | 683 | 687 | 693 | 693 | 685 | 687 | 695 | 712 | 714 |
| West Yellowstone town | 1,511 | 1,433 | 1,281 | 1,260 | 1,262 | 1,241 | 1,216 | 1,193 | 1,181 | 1,177 |
| Westby town | 139 | 142 | 144 | 147 | 152 | 153 | 160 | 166 | 173 | 172 |
| White Sulphur Springs city | 951 | 964 | 974 | 972 | 993 | 981 | 973 | 979 | 983 | 984 |
| Whitefish city | 8,281 | 8,060 | 7,702 | 7,092 | 6,776 | 6,450 | 6,175 | 5,925 | 5,754 | 5,032 |
| Whitehall town | 1,167 | 1,151 | 1,123 | 1,116 | 1,104 | 1,077 | 1,068 | 1,058 | 1,048 | 1,044 |
| Wibaux town | 465 | 478 | 473 | 489 | 509 | 517 | 530 | 540 | 569 | 567 |
| Winifred town | 146 | 145 | 146 | 146 | 148 | 149 | 151 | 153 | 156 | 156 |
| Winnett town | 163 | 162 | 173 | 172 | 184 | 182 | 185 | 181 | 185 | 185 |
| Wolf Point city | 2,509 | 2,521 | 2,549 | 2,594 | 2,617 | 2,591 | 2,604 | 2,647 | 2,666 | 2,663 |
Source: Population Division, U.S. Census Bureau