RANKING · 2020 CENSUS · 17 SHOWN OF 17

Largest Armenian population, Montana counties · 2020

Montana counties ranked by the number of residents who are Armenian ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 17 counties in Montana that qualify, ranked against each other statewide.

Armenian Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPARMENIAN POPULATIONVS 2010

01Gallatin County, MTMT128,740101+321%

02Flathead County, MTMT115,42970+775%

03Lewis and Clark County, MTMT75,33163–

04Cascade County, MTMT85,02944+175%

05Lake County, MTMT33,39233−8%

06Missoula County, MTMT123,51321+320%

07Ravalli County, MTMT48,58220+11%

08Custer County, MTMT12,03416–

09Big Horn County, MTMT12,75212–

10Stillwater County, MTMT9,4456–

11Roosevelt County, MTMT10,2425–

12Hill County, MTMT16,1674–

13Phillips County, MTMT4,2034–

14Powell County, MTMT7,1572–

15Sheridan County, MTMT3,4362+0%

16Yellowstone County, MTMT172,6922−93%

17Judith Basin County, MTMT2,1621–

SHOWING 1–17 OF 17

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