RANKING · 2024 ACS · 27 SHOWN OF 27

Fastest shrinking, Montana cities

Montana cities with the steepest population decline from the 2020 census to 2024. This list covers the 27 cities in Montana that qualify, ranked against each other statewide.

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MontanaAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

RELATEDLargest by population Fastest growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Helena Valley West Central, MTMT8,056-7.1%−168%

02Sidney, MTMT6,217-2.8%−68%

03Four Corners, MTMT5,791-1.9%–

04Havre, MTMT9,264-1.1%−84%

05Helena Valley Southeast, MTMT9,108-0.7%−101%

06Lockwood, MTMT7,181-0.2%−102%

07Great Falls, MTMT60,208-0.2%−106%

08Laurel, MTMT7,205-0.1%−101%

09Miles City, MTMT8,450+0.6%+106%

10Butte-Silver Bow, MTMT35,469+1.6%−8%

11Anaconda-Deer Lodge County, MTMT9,709+1.9%−122%

12Billings, MTMT121,239+2.0%−82%

13Lewistown, MTMT6,179+2.3%−158%

14Orchard Homes, MTMT5,588+3.9%−108%

15Missoula, MTMT78,903+4.1%−88%

16Helena, MTMT35,138+4.8%−18%

17Bozeman, MTMT58,814+5.3%−75%

18Polson, MTMT5,653+5.4%−78%

19Columbia Falls, MTMT5,753+5.8%−67%

20Bigfork, MTMT5,565+8.7%–

21Livingston, MTMT9,290+9.2%+311%

22Hamilton, MTMT5,451+9.5%−73%

23Helena Valley Northwest, MTMT5,183+10.2%−85%

24Whitefish, MTMT9,358+12.9%−15%

25Belgrade, MTMT13,107+13.5%−80%

26Kalispell, MTMT31,851+16.1%−17%

27Evergreen, MTMT9,611+17.9%−65%

SHOWING 1–27 OF 27

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES