RANKING · 2020 CENSUS · 27 SHOWN OF 27

Highest Romanian population share, Montana counties · 2020

Montana counties ranked by the share of all residents who are Romanian ancestry (2023 American Community Survey). A concentration measure: Romanian 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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RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPROMANIAN SHAREVS 2000

01Petroleum County, MTMT5480.9%–

02Prairie County, MTMT1,1120.9%–

03Richland County, MTMT11,3770.4%–

04Sanders County, MTMT14,0620.3%–

05Silver Bow County, MTMT36,1180.3%–

06Lewis and Clark County, MTMT75,3310.2%–

07Carbon County, MTMT11,4660.2%–

08Ravalli County, MTMT48,5820.1%–

09Teton County, MTMT6,4960.1%–

10Dawson County, MTMT8,6920.1%–

11Flathead County, MTMT115,4290.1%–

12Madison County, MTMT10,0260.1%–

13Hill County, MTMT16,1670.1%–

14Missoula County, MTMT123,5130.1%–

15Cascade County, MTMT85,0290.1%–

16Gallatin County, MTMT128,7400.1%–

17McCone County, MTMT1,7200.1%–

18Beaverhead County, MTMT10,0430.0%–

19Jefferson County, MTMT13,3290.0%–

20Lake County, MTMT33,3920.0%–

21Powell County, MTMT7,1570.0%–

22Sweet Grass County, MTMT3,7620.0%–

23Mineral County, MTMT5,1850.0%–

24Park County, MTMT18,2140.0%–

25Pondera County, MTMT6,0720.0%–

26Yellowstone County, MTMT172,6920.0%–

27Valley County, MTMT7,3850.0%–

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