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RANKING · 2024 ACS · 26 SHOWN OF 26

Largest Japanese population, Montana counties

Montana counties ranked by the number of residents who are Japanese, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 26 counties in Montana that qualify, ranked against each other statewide. The median across all 26 is 9. Biggest climber in the top 100 since 2020: Jefferson County, MT, up 7 places to #14.

Japanese Americans: full group profile →
SAME RANKING BYCitiesStatesMetros
Largest Japanese population by state
RANKPLACESTATEPOPJAPANESE POPULATIONVS 2020
01▲2Yellowstone County, MTMT172,692283+310%
02▼1Missoula County, MTMT123,51369−74%
03▲1Gallatin County, MTMT128,74060+11%
04▲1Flathead County, MTMT115,42958+23%
05▲6Cascade County, MTMT85,02940+122%
06▲1Lake County, MTMT33,39235+25%
07Prairie County, MTMT1,11234–
08Madison County, MTMT10,02633–
09▲1Big Horn County, MTMT12,75225+39%
10Lincoln County, MTMT22,32819–
11▼9Lewis and Clark County, MTMT75,33117−85%
13▲6Dawson County, MTMT8,6929+800%
14▲7Jefferson County, MTMT13,3299+800%
15▼2Roosevelt County, MTMT10,2428−27%
16▼4Toole County, MTMT5,2118−43%
17Glacier County, MTMT13,4635–
18Custer County, MTMT12,0344–
19Powell County, MTMT7,1574–
20Mineral County, MTMT5,1853–
22▼2Pondera County, MTMT6,0722+100%
23▼15Deer Lodge County, MTMT9,7091−96%
24▼9Sanders County, MTMT14,0621−83%
25Beaverhead County, MTMT10,0431–
26▼10Treasure County, MTMT7281−80%
SHOWING 1–26 OF 26

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