RANKING · 2024 ACS · 30 SHOWN OF 30

Highest Portuguese population share, Montana counties

Montana counties ranked by the share of all residents who are Portuguese ancestry (2024 American Community Survey). A concentration measure: Portuguese residents as a percentage of total population. This list covers the 30 counties in Montana that qualify, ranked against each other statewide.

Portuguese Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPPORTUGUESE SHAREVS 2010

01Madison County, MTMT10,0261.1%+0.6 pts

02Silver Bow County, MTMT36,1180.6%+0.5 pts

03Teton County, MTMT6,4960.4%+0.1 pts

04Cascade County, MTMT85,0290.4%+0.1 pts

05Mineral County, MTMT5,1850.3%+0.2 pts

06Flathead County, MTMT115,4290.2%−0.0 pts

07Gallatin County, MTMT128,7400.2%−0.2 pts

08Missoula County, MTMT123,5130.2%−0.1 pts

09Ravalli County, MTMT48,5820.2%−0.5 pts

10Lake County, MTMT33,3920.2%−0.1 pts

11Judith Basin County, MTMT2,1620.1%–

12Stillwater County, MTMT9,4450.1%–

13Sanders County, MTMT14,0620.1%−0.3 pts

14Carbon County, MTMT11,4660.1%−0.1 pts

15Lewis and Clark County, MTMT75,3310.1%−0.5 pts

16Yellowstone County, MTMT172,6920.1%+0.0 pts

17Lincoln County, MTMT22,3280.1%−0.7 pts

18Beaverhead County, MTMT10,0430.1%−0.0 pts

19Sheridan County, MTMT3,4360.1%–

20Richland County, MTMT11,3770.1%–

21Hill County, MTMT16,1670.1%+0.0 pts

22Musselshell County, MTMT5,5820.1%−0.2 pts

23Blaine County, MTMT6,8600.1%–

24Sweet Grass County, MTMT3,7620.1%–

25Fergus County, MTMT11,8250.0%+0.0 pts

26Park County, MTMT18,2140.0%−0.6 pts

27Chouteau County, MTMT5,8650.0%−0.2 pts

28Dawson County, MTMT8,6920.0%–

29Roosevelt County, MTMT10,2420.0%−0.0 pts

30Glacier County, MTMT13,4630.0%−0.1 pts

SHOWING 1–30 OF 30

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES