RANKING · 2020 CENSUS · 27 SHOWN OF 27

Highest Puerto Rican population share, Montana counties · 2020

Montana counties ranked by the share of all residents who are Puerto Rican origin (2023 American Community Survey). A concentration measure: Puerto Rican residents as a percentage of total population. This list covers the 27 counties in Montana that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPPUERTO RICAN SHAREVS 2000

01Roosevelt County, MTMT10,2420.7%–

02Stillwater County, MTMT9,4450.6%–

03Blaine County, MTMT6,8600.6%–

04Cascade County, MTMT85,0290.5%–

05Sanders County, MTMT14,0620.3%–

06Lincoln County, MTMT22,3280.3%–

07Lewis and Clark County, MTMT75,3310.3%–

08Gallatin County, MTMT128,7400.3%–

09Missoula County, MTMT123,5130.3%–

10Rosebud County, MTMT8,2530.2%–

11Hill County, MTMT16,1670.2%–

12Lake County, MTMT33,3920.2%–

13Yellowstone County, MTMT172,6920.2%–

14Ravalli County, MTMT48,5820.2%–

15Flathead County, MTMT115,4290.2%–

16Teton County, MTMT6,4960.2%–

17Custer County, MTMT12,0340.1%–

18Carbon County, MTMT11,4660.1%–

19Deer Lodge County, MTMT9,7090.1%–

20Wheatland County, MTMT2,1000.1%–

21Dawson County, MTMT8,6920.1%–

22Glacier County, MTMT13,4630.1%–

23Chouteau County, MTMT5,8650.1%–

24Silver Bow County, MTMT36,1180.1%–

25Meagher County, MTMT2,1370.1%–

26Musselshell County, MTMT5,5820.0%–

27Valley County, MTMT7,3850.0%–

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