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RANKING · 2020 CENSUS · 21 SHOWN OF 21

Highest Japanese population share, Montana counties · 2020

Montana counties ranked by the share of all residents who are Japanese (2020 American Community Survey). A concentration measure: Japanese residents as a percentage of total population. This list covers the 21 counties in Montana that qualify, ranked against each other statewide. The median across all 21 is 0.1%.

Japanese Americans: full group profile →
SAME RANKING BYCitiesStatesMetros
Highest Japanese population share by state
RANKPLACESTATEPOPJAPANESE SHAREVS –
01Fallon County, MTMT2,9591.0%–
02Treasure County, MTMT7280.8%–
03Toole County, MTMT5,2110.3%–
04Deer Lodge County, MTMT9,7090.3%–
05Missoula County, MTMT123,5130.2%–
06Carbon County, MTMT11,4660.2%–
08Big Horn County, MTMT12,7520.1%–
09Roosevelt County, MTMT10,2420.1%–
10Lake County, MTMT33,3920.1%–
11Valley County, MTMT7,3850.1%–
12Chouteau County, MTMT5,8650.1%–
13Sanders County, MTMT14,0620.1%–
14Gallatin County, MTMT128,7400.0%–
15Flathead County, MTMT115,4290.0%–
16Yellowstone County, MTMT172,6920.0%–
17Cascade County, MTMT85,0290.0%–
18Pondera County, MTMT6,0720.0%–
19Ravalli County, MTMT48,5820.0%–
20Dawson County, MTMT8,6920.0%–
21Jefferson County, MTMT13,3290.0%–
SHOWING 1–21 OF 21

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