RANKING · 2020 CENSUS · 27 SHOWN OF 27

Largest by population, Montana cities · 2020

The most populous Montana cities as of the 2020 population estimates. This list covers the 27 cities in Montana that qualify, ranked against each other statewide.

MontanaAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

01Billings, MTMT117,116+30%

02Missoula, MTMT73,489+29%

03Great Falls, MTMT60,442+7%

04Bozeman, MTMT53,293+94%

05Butte-Silver Bow, MTMT34,494+2%

06Helena, MTMT32,091+24%

07Kalispell, MTMT24,558+73%

08Belgrade, MTMT10,460+83%

09Anaconda-Deer Lodge County, MTMT9,421+0%

10Havre, MTMT9,362−3%

11Helena Valley Southeast, MTMT9,168+28%

12Helena Valley West Central, MTMT8,670+24%

13Miles City, MTMT8,354−2%

14Evergreen, MTMT8,149+31%

15Livingston, MTMT8,040+17%

16Whitefish, MTMT7,751+54%

17Laurel, MTMT7,222+15%

18Lockwood, MTMT7,195+67%

19Sidney, MTMT6,346+33%

20Lewistown, MTMT5,952+2%

21Four Corners, MTMT5,901+223%

22Orchard Homes, MTMT5,377+3%

23Columbia Falls, MTMT5,308+46%

24Polson, MTMT5,148+27%

25Bigfork, MTMT5,118+260%

26Helena Valley Northwest, MTMT4,705+126%

27Hamilton, MTMT4,659+26%

SHOWING 1–27 OF 27

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