RANKING · 2024 ACS · 33 SHOWN OF 33

Largest Puerto Rican population, Montana counties

Montana counties ranked by the number of residents who are Puerto Rican origin, 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 33 counties in Montana that qualify, ranked against each other statewide.

Puerto Rican Americans: full group profile →

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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 2010

01Cascade County, MTMT85,029513+71%

02Yellowstone County, MTMT172,692388+22%

03Gallatin County, MTMT128,740346+338%

04Lewis and Clark County, MTMT75,331270+101%

05Flathead County, MTMT115,429249+101%

06Missoula County, MTMT123,513222−23%

07Richland County, MTMT11,37784+8300%

08Ravalli County, MTMT48,58274+19%

09Teton County, MTMT6,49651–

10Chouteau County, MTMT5,86548+182%

11Sanders County, MTMT14,06239–

12Stillwater County, MTMT9,44535+289%

13Musselshell County, MTMT5,58234–

14Lake County, MTMT33,39229−72%

15Blaine County, MTMT6,86024–

16Jefferson County, MTMT13,32916–

17Lincoln County, MTMT22,32814+17%

18Silver Bow County, MTMT36,11814−66%

19Carbon County, MTMT11,46613–

20Park County, MTMT18,21412−8%

21Big Horn County, MTMT12,75210–

22Custer County, MTMT12,0349−68%

23Granite County, MTMT3,6588–

24Dawson County, MTMT8,6927+0%

25Toole County, MTMT5,2116–

26Mineral County, MTMT5,1855+25%

27Fergus County, MTMT11,8254–

28Meagher County, MTMT2,1373−73%

29Rosebud County, MTMT8,2533–

30Treasure County, MTMT7283–

31Roosevelt County, MTMT10,2422–

32Pondera County, MTMT6,0721–

33Beaverhead County, MTMT10,0431–

SHOWING 1–33 OF 33

Download CSV (full list, 33 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES