RANKING · 1990 CENSUS · 25 SHOWN OF 25

Oldest by median age, Montana cities · 1990

Montana cities ranked by median age of residents (1990 ACS). This list covers the 25 cities in Montana that qualify, ranked against each other statewide. The median across all 25 is 33.7.

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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 –

01Hamilton, MTMT5,45147.3–

02Lewistown, MTMT6,17939.1–

03Anaconda-Deer Lodge County, MTMT9,70938.2–

04Livingston, MTMT9,29037.8–

05Kalispell, MTMT31,85136.5–

06Polson, MTMT5,65336.0–

07Butte-Silver Bow, MTMT35,46935.9–

08Laurel, MTMT7,20535.6–

09Whitefish, MTMT9,35835.6–

10Miles City, MTMT8,45035.5–

11Helena, MTMT35,13834.9–

12Great Falls, MTMT60,20834.4–

13Billings, MTMT121,23933.7–

14Sidney, MTMT6,21733.3–

15Helena Valley West Central, MTMT8,05633.1–

16Havre, MTMT9,26432.7–

17Orchard Homes, MTMT5,58832.5–

18Evergreen, MTMT9,61131.0–

19Lockwood, MTMT7,18131.0–

20Missoula, MTMT78,90330.7–

21Columbia Falls, MTMT5,75330.5–

22Helena Valley Northwest, MTMT5,18330.4–

23Helena Valley Southeast, MTMT9,10829.3–

24Belgrade, MTMT13,10728.5–

25Bozeman, MTMT58,81425.8–

SHOWING 1–25 OF 25

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS