RANKING · 2020 CENSUS · 27 SHOWN OF 27

Youngest by median age, Montana cities · 2020

Montana cities with the youngest median age (2020 ACS). This list covers the 27 cities in Montana that qualify, ranked against each other statewide. The median across all 27 is 38.9.

Flip the list · Oldest by median age, US cities →

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

01Bozeman, MTMT58,81428.1+11%

02Belgrade, MTMT13,10732.1+10%

03Havre, MTMT9,26434.60%

04Missoula, MTMT78,90335.0+16%

05Four Corners, MTMT5,79136.70%

06Helena Valley Northwest, MTMT5,18336.7+4%

07Sidney, MTMT6,21736.7−6%

08Lockwood, MTMT7,18137.1+9%

09Kalispell, MTMT31,85137.70%

10Billings, MTMT121,23937.8+3%

11Laurel, MTMT7,20538.50%

12Columbia Falls, MTMT5,75338.5+8%

13Evergreen, MTMT9,61138.8+10%

14Helena Valley Southeast, MTMT9,10838.9+24%

15Great Falls, MTMT60,20839.3+4%

16Miles City, MTMT8,45039.8+2%

17Helena, MTMT35,13839.8+3%

18Butte-Silver Bow, MTMT35,46941.7+7%

19Helena Valley West Central, MTMT8,05642.2+11%

20Livingston, MTMT9,29042.5+5%

21Whitefish, MTMT9,35843.0+15%

22Polson, MTMT5,65343.9+14%

23Lewistown, MTMT6,17944.0+3%

24Orchard Homes, MTMT5,58844.7+13%

25Hamilton, MTMT5,45147.2+7%

26Anaconda-Deer Lodge County, MTMT9,70949.4+17%

27Bigfork, MTMT5,56555.2+9%

SHOWING 1–27 OF 27

Download CSV (full list, 27 rows)

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