RANKING · 2020 CENSUS · 27 SHOWN OF 27

Most population gained, Montana cities · 2020

Montana cities that added the most residents from the 2010 census to 2020, by raw count of people rather than percentage. 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

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Bozeman, MTMT58,814+16,013+230%

02Billings, MTMT121,239+12,946+49%

03Missoula, MTMT78,903+6,701−53%

04Kalispell, MTMT31,851+4,631+101%

05Helena, MTMT35,138+3,901+172%

06Belgrade, MTMT13,107+3,071+33%

07Four Corners, MTMT5,791+2,755–

08Great Falls, MTMT60,208+1,937+22%

09Whitefish, MTMT9,358+1,394+110%

10Helena Valley Northwest, MTMT5,183+1,223+44%

11Sidney, MTMT6,217+1,155−361%

12Livingston, MTMT9,290+996+564%

13Butte-Silver Bow, MTMT35,469+969+66%

14Helena Valley Southeast, MTMT9,108+941−63%

15Bigfork, MTMT5,565+848–

16Helena Valley West Central, MTMT8,056+787+20%

17Polson, MTMT5,653+660−16%

18Columbia Falls, MTMT5,753+620+13%

19Evergreen, MTMT9,611+533−75%

20Laurel, MTMT7,205+504−11%

21Lockwood, MTMT7,181+398+17%

22Hamilton, MTMT5,451+311−68%

23Orchard Homes, MTMT5,588+180−104%

24Anaconda-Deer Lodge County, MTMT9,709+123−114%

25Havre, MTMT9,264+52−107%

26Lewistown, MTMT6,179+51−121%

27Miles City, MTMT8,450-56−315%

SHOWING 1–27 OF 27

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