| Annual Estimates of Housing Units for Counties in Montana: April 1, 2000 to July 1, 2006 | |||||||||
| Geographic Area | Housing Unit Estimates | April 1, 2000 | |||||||
| July 1, 2006 | July 1, 2005 | July 1, 2004 | July 1, 2003 | July 1, 2002 | July 1, 2001 | July 1, 2000 | Estimates Base | Census | |
| Montana | 432,023 | 428,300 | 423,256 | 420,325 | 417,534 | 415,603 | 413,224 | 412,633 | 412,633 |
| Beaverhead County | 4,604 | 4,613 | 4,575 | 4,578 | 4,585 | 4,582 | 4,573 | 4,571 | 4,571 |
| Big Horn County | 4,673 | 4,678 | 4,656 | 4,659 | 4,659 | 4,662 | 4,656 | 4,655 | 4,655 |
| Blaine County | 2,939 | 2,946 | 2,937 | 2,943 | 2,945 | 2,948 | 2,947 | 2,947 | 2,947 |
| Broadwater County | 2,024 | 2,029 | 2,018 | 2,016 | 2,014 | 2,011 | 2,004 | 2,002 | 2,002 |
| Carbon County | 5,698 | 5,649 | 5,571 | 5,536 | 5,534 | 5,523 | 5,500 | 5,494 | 5,494 |
| Carter County | 806 | 808 | 806 | 808 | 810 | 811 | 811 | 811 | 811 |
| Cascade County | 35,932 | 35,707 | 35,568 | 35,445 | 35,399 | 35,300 | 35,240 | 35,225 | 35,225 |
| Chouteau County | 2,779 | 2,781 | 2,765 | 2,767 | 2,771 | 2,775 | 2,776 | 2,776 | 2,776 |
| Custer County | 5,334 | 5,342 | 5,339 | 5,346 | 5,355 | 5,364 | 5,361 | 5,360 | 5,360 |
| Daniels County | 1,144 | 1,146 | 1,149 | 1,150 | 1,152 | 1,153 | 1,154 | 1,154 | 1,154 |
| Dawson County | 4,144 | 4,151 | 4,143 | 4,147 | 4,156 | 4,164 | 4,167 | 4,168 | 4,168 |
| Deer Lodge County | 5,046 | 5,027 | 5,014 | 4,971 | 4,964 | 4,959 | 4,958 | 4,958 | 4,958 |
| Fallon County | 1,413 | 1,416 | 1,411 | 1,408 | 1,409 | 1,410 | 1,410 | 1,410 | 1,410 |
| Fergus County | 5,547 | 5,557 | 5,545 | 5,554 | 5,550 | 5,558 | 5,558 | 5,558 | 5,558 |
| Flathead County | 37,311 | 36,674 | 36,077 | 35,693 | 35,324 | 35,067 | 34,831 | 34,773 | 34,773 |
| Gallatin County | 35,680 | 34,097 | 32,266 | 31,567 | 30,940 | 30,371 | 29,665 | 29,489 | 29,489 |
| Garfield County | 957 | 959 | 955 | 958 | 959 | 961 | 961 | 961 | 961 |
| Glacier County | 5,238 | 5,250 | 5,219 | 5,228 | 5,236 | 5,244 | 5,243 | 5,243 | 5,243 |
| Golden Valley County | 448 | 449 | 446 | 447 | 448 | 449 | 450 | 450 | 450 |
| Granite County | 2,073 | 2,079 | 2,066 | 2,070 | 2,071 | 2,074 | 2,074 | 2,074 | 2,074 |
| Hill County | 7,427 | 7,444 | 7,428 | 7,437 | 7,445 | 7,453 | 7,453 | 7,453 | 7,453 |
| Jefferson County | 4,203 | 4,211 | 4,187 | 4,193 | 4,199 | 4,204 | 4,200 | 4,199 | 4,199 |
| Judith Basin County | 1,320 | 1,324 | 1,316 | 1,319 | 1,322 | 1,325 | 1,325 | 1,325 | 1,325 |
| Lake County | 14,018 | 13,929 | 13,836 | 13,809 | 13,743 | 13,686 | 13,621 | 13,605 | 13,605 |
| Lewis and Clark County | 26,349 | 26,160 | 25,962 | 25,882 | 25,813 | 25,789 | 25,695 | 25,672 | 25,672 |
| Liberty County | 1,067 | 1,069 | 1,063 | 1,065 | 1,067 | 1,069 | 1,070 | 1,070 | 1,070 |
| Lincoln County | 9,377 | 9,389 | 9,337 | 9,348 | 9,358 | 9,354 | 9,326 | 9,319 | 9,319 |
| Madison County | 4,732 | 4,733 | 4,685 | 4,677 | 4,667 | 4,673 | 4,671 | 4,671 | 4,671 |
| McCone County | 1,079 | 1,082 | 1,079 | 1,081 | 1,084 | 1,086 | 1,087 | 1,087 | 1,087 |
| Meagher County | 1,358 | 1,362 | 1,354 | 1,357 | 1,360 | 1,362 | 1,363 | 1,363 | 1,363 |
| Mineral County | 1,988 | 1,987 | 1,973 | 1,970 | 1,969 | 1,971 | 1,963 | 1,961 | 1,961 |
| Missoula County | 45,366 | 44,834 | 44,351 | 43,498 | 42,460 | 42,005 | 41,455 | 41,319 | 41,319 |
| Musselshell County | 2,304 | 2,310 | 2,304 | 2,309 | 2,314 | 2,318 | 2,317 | 2,317 | 2,317 |
| Park County | 8,439 | 8,386 | 8,313 | 8,317 | 8,279 | 8,261 | 8,250 | 8,247 | 8,247 |
| Petroleum County | 291 | 292 | 290 | 291 | 292 | 292 | 292 | 292 | 292 |
| Phillips County | 2,491 | 2,497 | 2,490 | 2,494 | 2,498 | 2,502 | 2,502 | 2,502 | 2,502 |
| Pondera County | 2,816 | 2,822 | 2,818 | 2,822 | 2,828 | 2,832 | 2,834 | 2,834 | 2,834 |
| Powder River County | 1,006 | 1,009 | 1,003 | 1,005 | 1,007 | 1,008 | 1,007 | 1,007 | 1,007 |
| Powell County | 2,921 | 2,929 | 2,911 | 2,918 | 2,925 | 2,928 | 2,930 | 2,930 | 2,930 |
| Prairie County | 714 | 715 | 714 | 714 | 715 | 717 | 718 | 718 | 718 |
| Ravalli County | 16,435 | 16,368 | 16,224 | 16,164 | 16,089 | 16,041 | 15,965 | 15,946 | 15,946 |
| Richland County | 4,577 | 4,562 | 4,559 | 4,555 | 4,555 | 4,561 | 4,558 | 4,557 | 4,557 |
| Roosevelt County | 4,037 | 4,037 | 4,025 | 4,030 | 4,035 | 4,042 | 4,043 | 4,044 | 4,044 |
| Rosebud County | 3,918 | 3,928 | 3,918 | 3,924 | 3,922 | 3,922 | 3,914 | 3,912 | 3,912 |
| Sanders County | 5,313 | 5,326 | 5,292 | 5,290 | 5,294 | 5,291 | 5,275 | 5,271 | 5,271 |
| Sheridan County | 2,148 | 2,154 | 2,151 | 2,156 | 2,161 | 2,164 | 2,166 | 2,167 | 2,167 |
| Silver Bow County | 16,248 | 16,227 | 16,198 | 16,196 | 16,212 | 16,185 | 16,178 | 16,176 | 16,176 |
| Stillwater County | 4,017 | 4,027 | 4,005 | 4,004 | 3,996 | 3,977 | 3,953 | 3,947 | 3,947 |
| Sweet Grass County | 1,904 | 1,907 | 1,901 | 1,900 | 1,902 | 1,889 | 1,866 | 1,860 | 1,860 |
| Teton County | 2,909 | 2,913 | 2,905 | 2,905 | 2,911 | 2,911 | 2,910 | 2,910 | 2,910 |
| Toole County | 2,288 | 2,291 | 2,291 | 2,293 | 2,298 | 2,300 | 2,300 | 2,300 | 2,300 |
| Treasure County | 419 | 420 | 419 | 420 | 421 | 422 | 422 | 422 | 422 |
| Valley County | 4,818 | 4,828 | 4,810 | 4,817 | 4,827 | 4,838 | 4,845 | 4,847 | 4,847 |
| Wheatland County | 1,147 | 1,151 | 1,144 | 1,147 | 1,150 | 1,153 | 1,154 | 1,154 | 1,154 |
| Wibaux County | 583 | 584 | 583 | 584 | 585 | 586 | 587 | 587 | 587 |
| Yellowstone County | 58,206 | 57,735 | 56,891 | 56,143 | 55,550 | 55,100 | 54,670 | 54,563 | 54,563 |
Source: Population Division, U.S. Census Bureau