RANKING · 2010 CENSUS · 17 SHOWN OF 17

Largest South American population, Montana counties · 2010

Montana counties ranked by the number of residents who are South American origin, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 17 counties in Montana that qualify, ranked against each other statewide. The median across all 17 is 26.

South Americans: full group profile →

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SAME RANKING BYCities States Metros

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

RANKPLACESTATEPOPSOUTH AMERICAN POPULATIONVS –

01Missoula County, MTMT123,513191–

02Gallatin County, MTMT128,740185–

03Yellowstone County, MTMT172,692172–

04Flathead County, MTMT115,429158–

05Cascade County, MTMT85,02981–

06Lewis and Clark County, MTMT75,33152–

07Hill County, MTMT16,16749–

08Madison County, MTMT10,02629–

09Roosevelt County, MTMT10,24226–

10Sweet Grass County, MTMT3,76224–

11Ravalli County, MTMT48,58222–

12Meagher County, MTMT2,13719–

13Lincoln County, MTMT22,32813–

14Lake County, MTMT33,3926–

15Pondera County, MTMT6,0725–

16Beaverhead County, MTMT10,0433–

17Carbon County, MTMT11,4663–

SHOWING 1–17 OF 17

Download CSV (full list, 17 rows)

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