RANKING · 2020 CENSUS · 12 SHOWN OF 12

Highest Iranian population share, Montana counties · 2020

Montana counties ranked by the share of all residents who are Iranian ancestry (2023 American Community Survey). A concentration measure: Iranian residents as a percentage of total population. This list covers the 12 counties in Montana that qualify, ranked against each other statewide.

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

YEAR2010 2020 2024

Highest Iranian population share by state

RANKPLACESTATEPOPIRANIAN SHAREVS 2000

01Stillwater County, MTMT9,4450.6%–

02Prairie County, MTMT1,1120.6%–

03Deer Lodge County, MTMT9,7090.3%–

04Missoula County, MTMT123,5130.1%–

05Gallatin County, MTMT128,7400.1%–

06Yellowstone County, MTMT172,6920.0%–

07Lewis and Clark County, MTMT75,3310.0%–

08Granite County, MTMT3,6580.0%–

09Cascade County, MTMT85,0290.0%–

10Beaverhead County, MTMT10,0430.0%–

11Custer County, MTMT12,0340.0%–

12Flathead County, MTMT115,4290.0%–

SHOWING 1–12 OF 12

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