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 (2023 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.

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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 2000

01Prairie County, MTMT1,1122.7%–

02Powder River County, MTMT1,7810.9%–

03Petroleum County, MTMT5480.7%–

04Madison County, MTMT10,0260.4%–

05Big Horn County, MTMT12,7520.2%–

06Yellowstone County, MTMT172,6920.2%–

07Toole County, MTMT5,2110.2%–

08Treasure County, MTMT7280.1%–

09Lake County, MTMT33,3920.1%–

10Dawson County, MTMT8,6920.1%–

11Lincoln County, MTMT22,3280.1%–

12Roosevelt County, MTMT10,2420.1%–

13Jefferson County, MTMT13,3290.1%–

14Mineral County, MTMT5,1850.1%–

15Missoula County, MTMT123,5130.1%–

16Powell County, MTMT7,1570.1%–

17Flathead County, MTMT115,4290.1%–

18Gallatin County, MTMT128,7400.0%–

19Cascade County, MTMT85,0290.0%–

20Glacier County, MTMT13,4630.0%–

21Custer County, MTMT12,0340.0%–

22Pondera County, MTMT6,0720.0%–

23Lewis and Clark County, MTMT75,3310.0%–

24Deer Lodge County, MTMT9,7090.0%–

25Beaverhead County, MTMT10,0430.0%–

26Sanders County, MTMT14,0620.0%–

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES