RANKING · 2010 CENSUS · 27 SHOWN OF 27

Most population lost, Montana cities · 2010

Montana cities that lost the most residents from the 2000 census to 2010, by raw count of people rather than percentage. This list covers the 27 cities in Montana that qualify, ranked against each other statewide.

Flip the list · Most population gained, US cities →

MontanaAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Butte-Silver Bow, MTMT35,469-367−163%

02Havre, MTMT9,264-311−56%

03Anaconda-Deer Lodge County, MTMT9,709-119−86%

04Miles City, MTMT8,450-77−396%

05Orchard Homes, MTMT5,588-2−100%

06Lewistown, MTMT6,179+88−137%

07Livingston, MTMT9,290+193+29%

08Sidney, MTMT6,217+417−194%

09Polson, MTMT5,653+447−43%

10Laurel, MTMT7,205+463−19%

11Hamilton, MTMT5,451+643−34%

12Helena Valley West Central, MTMT8,056+900+37%

13Columbia Falls, MTMT5,753+1,043+91%

14Helena Valley Southeast, MTMT9,108+1,086−57%

15Four Corners, MTMT5,791+1,318–

16Whitefish, MTMT9,358+1,325+100%

17Helena Valley Northwest, MTMT5,183+1,400+65%

18Evergreen, MTMT9,611+1,401−33%

19Belgrade, MTMT13,107+1,661−28%

20Great Falls, MTMT60,208+1,815+14%

21Helena, MTMT35,138+2,410+68%

22Lockwood, MTMT7,181+2,491+635%

23Bigfork, MTMT5,565+2,849–

24Kalispell, MTMT31,851+5,704+147%

25Missoula, MTMT78,903+9,735−31%

26Bozeman, MTMT58,814+9,771+102%

27Billings, MTMT121,239+14,323+65%

SHOWING 1–27 OF 27

Download CSV (full list, 27 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS