RANKING · 2024 ACS · 22 SHOWN OF 22

Highest Romanian population share, Montana counties

Montana counties ranked by the share of all residents who are Romanian ancestry (2024 American Community Survey). A concentration measure: Romanian residents as a percentage of total population. This list covers the 22 counties in Montana that qualify, ranked against each other statewide.

Romanian 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

RANKPLACESTATEPOPROMANIAN SHAREVS 2010

01Petroleum County, MTMT5481.3%–

02Lewis and Clark County, MTMT75,3310.5%+0.4 pts

03Sheridan County, MTMT3,4360.4%−0.4 pts

04Daniels County, MTMT1,6120.4%–

05Mineral County, MTMT5,1850.3%–

06Jefferson County, MTMT13,3290.3%–

07Gallatin County, MTMT128,7400.2%+0.0 pts

08Roosevelt County, MTMT10,2420.1%+0.0 pts

09Ravalli County, MTMT48,5820.1%+0.0 pts

10Cascade County, MTMT85,0290.1%–

11Madison County, MTMT10,0260.1%–

12Carbon County, MTMT11,4660.1%–

13Richland County, MTMT11,3770.1%−0.1 pts

14Flathead County, MTMT115,4290.1%–

15Missoula County, MTMT123,5130.1%−0.1 pts

16Pondera County, MTMT6,0720.0%−0.3 pts

17Sweet Grass County, MTMT3,7620.0%–

18Lake County, MTMT33,3920.0%–

19Fergus County, MTMT11,8250.0%−0.0 pts

20Lincoln County, MTMT22,3280.0%–

21Valley County, MTMT7,3850.0%−0.2 pts

22Yellowstone County, MTMT172,6920.0%−0.2 pts

SHOWING 1–22 OF 22

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