RANKING · 2024 ACS · 27 SHOWN OF 27

Oldest by median age, Montana cities

Montana cities ranked by median age of residents (2024 ACS). This list covers the 27 cities in Montana that qualify, ranked against each other statewide. The median across all 27 is 39.0. Biggest climber in the top 100 since 2020: Helena Valley Southeast, MT, up 5 places to #9.

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MontanaAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Bigfork, MTMT5,56553.9+7%

02▲1Hamilton, MTMT5,45151.8+17%

03▼1Anaconda-Deer Lodge County, MTMT9,70949.9+18%

04▲1Lewistown, MTMT6,17944.7+4%

05▲2Whitefish, MTMT9,35844.4+19%

06▲2Livingston, MTMT9,29043.8+9%

07▼1Polson, MTMT5,65343.0+11%

08▲3Miles City, MTMT8,45042.6+10%

09▲5Helena Valley Southeast, MTMT9,10841.3+32%

10Butte-Silver Bow, MTMT35,46940.6+4%

11▲1Helena, MTMT35,13840.5+4%

12▼8Orchard Homes, MTMT5,58840.1+2%

13▼4Helena Valley West Central, MTMT8,05639.3+4%

14▼1Great Falls, MTMT60,20839.0+3%

15▲3Billings, MTMT121,23938.8+5%

16▼1Evergreen, MTMT9,61137.8+7%

17▲3Lockwood, MTMT7,18137.5+11%

18▲5Sidney, MTMT6,21737.3−5%

19▼3Laurel, MTMT7,20537.1−3%

20▼3Columbia Falls, MTMT5,75336.6+3%

21▼2Kalispell, MTMT31,85136.2−4%

22Helena Valley Northwest, MTMT5,18335.7+1%

23▲1Missoula, MTMT78,90334.7+15%

24▼3Four Corners, MTMT5,79134.1−7%

25▲1Belgrade, MTMT13,10733.3+14%

26▼1Havre, MTMT9,26432.1−7%

27Bozeman, MTMT58,81428.9+14%

SHOWING 1–27 OF 27

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES