RANKING · 2024 ACS · 26 SHOWN OF 26

Highest Japanese population share, Montana counties

Montana counties ranked by the share of all residents who are Japanese (2024 American Community Survey). A concentration measure: Japanese residents as a percentage of total population. This list covers the 26 counties in Montana that qualify, ranked against each other statewide. The median across all 26 is 0.1%. Biggest climber in the top 100 since 2020: Yellowstone County, MT, up 10 places to #6.

Japanese Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest Chinese population Highest Chinese population share Largest Taiwanese population Highest Taiwanese population share Largest Hmong population Highest Hmong population share

RANKPLACESTATEPOPJAPANESE SHAREVS 2020

01Prairie County, MTMT1,1122.7%–

02Powder River County, MTMT1,7810.9%–

03Petroleum County, MTMT5480.7%–

04Madison County, MTMT10,0260.4%–

05▲3Big Horn County, MTMT12,7520.2%+0.1 pts

06▲10Yellowstone County, MTMT172,6920.2%+0.1 pts

07▼4Toole County, MTMT5,2110.2%−0.1 pts

08▼6Treasure County, MTMT7280.1%−0.7 pts

09▲1Lake County, MTMT33,3920.1%0.0 pts

10▲10Dawson County, MTMT8,6920.1%+0.1 pts

11Lincoln County, MTMT22,3280.1%–

12▼3Roosevelt County, MTMT10,2420.1%0.0 pts

13▲8Jefferson County, MTMT13,3290.1%+0.1 pts

14Mineral County, MTMT5,1850.1%–

15▼10Missoula County, MTMT123,5130.1%−0.2 pts

16Powell County, MTMT7,1570.1%–

17▼2Flathead County, MTMT115,4290.1%0.0 pts

18▼4Gallatin County, MTMT128,7400.0%0.0 pts

19▼2Cascade County, MTMT85,0290.0%0.0 pts

20Glacier County, MTMT13,4630.0%–

21Custer County, MTMT12,0340.0%–

22▼4Pondera County, MTMT6,0720.0%0.0 pts

23▼16Lewis and Clark County, MTMT75,3310.0%−0.1 pts

24▼20Deer Lodge County, MTMT9,7090.0%−0.2 pts

25Beaverhead County, MTMT10,0430.0%–

26▼13Sanders County, MTMT14,0620.0%0.0 pts

SHOWING 1–26 OF 26

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