RANKING · 2010 CENSUS · 23 SHOWN OF 23

Largest Puerto Rican population, Montana counties · 2010

Montana counties ranked by the number of residents who are Puerto Rican 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 23 counties in Montana that qualify, ranked against each other statewide. The median across all 23 is 17.

Puerto Rican Americans: full group profile →

MontanaAll states All rankings

SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPPUERTO RICAN POPULATIONVS –

01Yellowstone County, MTMT172,692318–

02Cascade County, MTMT85,029300–

03Missoula County, MTMT123,513287–

04Lewis and Clark County, MTMT75,331134–

05Flathead County, MTMT115,429124–

06Lake County, MTMT33,392105–

07Gallatin County, MTMT128,74079–

08Ravalli County, MTMT48,58262–

09Silver Bow County, MTMT36,11841–

10Custer County, MTMT12,03428–

11Deer Lodge County, MTMT9,70923–

12Chouteau County, MTMT5,86517–

13Hill County, MTMT16,16713–

14Park County, MTMT18,21413–

15Lincoln County, MTMT22,32812–

16Meagher County, MTMT2,13711–

17Stillwater County, MTMT9,4459–

18Wibaux County, MTMT8859–

19Dawson County, MTMT8,6927–

20Powell County, MTMT7,1575–

21Mineral County, MTMT5,1854–

22Glacier County, MTMT13,4633–

23Richland County, MTMT11,3771–

SHOWING 1–23 OF 23

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