RANKING · 2024 ACS · 10 SHOWN OF 10

Highest Ecuadorian population share, Montana counties

Montana counties ranked by the share of all residents who are Ecuadorian origin (2023 American Community Survey). A concentration measure: Ecuadorian residents as a percentage of total population. This list covers the 10 counties in Montana that qualify, ranked against each other statewide.

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RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share

YEAR2010 2020 2024

Highest Ecuadorian population share by state

RANKPLACESTATEPOPECUADORIAN SHAREVS 2000

01Roosevelt County, MTMT10,2420.1%–

02Lake County, MTMT33,3920.1%–

03Teton County, MTMT6,4960.0%–

04Big Horn County, MTMT12,7520.0%–

05Gallatin County, MTMT128,7400.0%–

06Missoula County, MTMT123,5130.0%–

07Park County, MTMT18,2140.0%–

08Flathead County, MTMT115,4290.0%–

09Cascade County, MTMT85,0290.0%–

10Lewis and Clark County, MTMT75,3310.0%–

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