RANKING · 2010 CENSUS · 23 SHOWN OF 23

Highest Romanian population share, Montana counties · 2010

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 23 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

01Sheridan County, MTMT3,4360.8%–

02Pondera County, MTMT6,0720.3%–

03Valley County, MTMT7,3850.3%–

04Powell County, MTMT7,1570.3%–

05Granite County, MTMT3,6580.2%–

06Gallatin County, MTMT128,7400.2%–

07Richland County, MTMT11,3770.2%–

08Yellowstone County, MTMT172,6920.2%–

09Deer Lodge County, MTMT9,7090.2%–

10Chouteau County, MTMT5,8650.2%–

11Lewis and Clark County, MTMT75,3310.2%–

12Park County, MTMT18,2140.1%–

13Missoula County, MTMT123,5130.1%–

14Beaverhead County, MTMT10,0430.1%–

15Roosevelt County, MTMT10,2420.1%–

16Ravalli County, MTMT48,5820.1%–

17Stillwater County, MTMT9,4450.1%–

18Sanders County, MTMT14,0620.1%–

19Blaine County, MTMT6,8600.1%–

20Musselshell County, MTMT5,5820.0%–

21Custer County, MTMT12,0340.0%–

22Fergus County, MTMT11,8250.0%–

23Silver Bow County, MTMT36,1180.0%–

SHOWING 1–23 OF 23

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