RANKING · 2010 CENSUS · 27 SHOWN OF 27

Fastest shrinking, Montana cities · 2010

Montana cities with the steepest population decline since the prior decennial census. 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 densely populated Most sparsely populated Best broadband access Worst broadband access

YEAR2000 2010 2020

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Havre, MTMT9,264-3.2%−52%

02Anaconda-Deer Lodge County, MTMT9,709-1.3%−85%

03Butte-Silver Bow, MTMT35,469-1.1%−162%

04Miles City, MTMT8,450-0.9%−395%

05Orchard Homes, MTMT5,588-0.0%−100%

06Lewistown, MTMT6,179+1.5%−138%

07Livingston, MTMT9,290+2.8%+26%

08Great Falls, MTMT60,208+3.2%+11%

09Laurel, MTMT7,205+7.4%−26%

10Sidney, MTMT6,217+8.7%−203%

11Helena, MTMT35,138+9.3%+59%

12Polson, MTMT5,653+11.1%−54%

13Helena Valley West Central, MTMT8,056+12.9%+24%

14Helena Valley Southeast, MTMT9,108+15.2%−72%

15Billings, MTMT121,239+15.9%+49%

16Missoula, MTMT78,903+17.1%−48%

17Hamilton, MTMT5,451+17.4%−51%

18Evergreen, MTMT9,611+22.5%−56%

19Whitefish, MTMT9,358+26.3%+73%

20Columbia Falls, MTMT5,753+28.6%+62%

21Belgrade, MTMT13,107+29.0%−57%

22Bozeman, MTMT58,814+35.5%+66%

23Kalispell, MTMT31,851+40.1%+107%

24Lockwood, MTMT7,181+57.8%+577%

25Helena Valley Northwest, MTMT5,183+67.2%−3%

26Four Corners, MTMT5,791+72.1%–

27Bigfork, MTMT5,565+200.5%–

SHOWING 1–27 OF 27

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES