RANKING · 2010 CENSUS · 31 SHOWN OF 31

Largest Portuguese population, Montana counties · 2010

Montana counties ranked by the number of residents who are Portuguese ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 31 counties in Montana that qualify, ranked against each other statewide.

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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 POPULATIONVS 2000

01Lewis and Clark County, MTMT75,331358–

02Gallatin County, MTMT128,740320–

03Missoula County, MTMT123,513314–

04Ravalli County, MTMT48,582265–

05Flathead County, MTMT115,429255–

06Cascade County, MTMT85,029249–

07Lincoln County, MTMT22,328157–

08Yellowstone County, MTMT172,692107–

09Park County, MTMT18,214100–

10Lake County, MTMT33,39275–

11Sanders County, MTMT14,06248–

12Silver Bow County, MTMT36,11844–

13Madison County, MTMT10,02640–

14Carbon County, MTMT11,46628–

15Meagher County, MTMT2,13728–

16Teton County, MTMT6,49620–

17Chouteau County, MTMT5,86516–

18Beaverhead County, MTMT10,04314–

19Glacier County, MTMT13,46314–

20Granite County, MTMT3,65814–

21Musselshell County, MTMT5,58213–

22Deer Lodge County, MTMT9,70912–

23Powell County, MTMT7,15711–

24Custer County, MTMT12,03410–

25Hill County, MTMT16,1677–

26Big Horn County, MTMT12,7526–

27Jefferson County, MTMT13,3295–

28Petroleum County, MTMT5485–

29Fergus County, MTMT11,8253–

30Mineral County, MTMT5,1853–

31Roosevelt County, MTMT10,2422–

SHOWING 1–31 OF 31

Download CSV (full list, 31 rows)

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