RANKING · 2020 CENSUS · 34 SHOWN OF 34

Highest Croatian population share, Montana counties · 2020

Montana counties ranked by the share of all residents who are Croatian ancestry (2023 American Community Survey). A concentration measure: Croatian residents as a percentage of total population. This list covers the 34 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

RANKPLACESTATEPOPCROATIAN SHAREVS 2000

01Stillwater County, MTMT9,4451.2%–

02Judith Basin County, MTMT2,1620.9%–

03Prairie County, MTMT1,1120.9%–

04Silver Bow County, MTMT36,1180.8%–

05Liberty County, MTMT1,9570.7%–

06Treasure County, MTMT7280.7%–

07Lewis and Clark County, MTMT75,3310.5%–

08Fergus County, MTMT11,8250.5%–

09Deer Lodge County, MTMT9,7090.4%–

10Jefferson County, MTMT13,3290.3%–

11Cascade County, MTMT85,0290.3%–

12Park County, MTMT18,2140.3%–

13Yellowstone County, MTMT172,6920.3%–

14Chouteau County, MTMT5,8650.2%–

15Flathead County, MTMT115,4290.2%–

16Missoula County, MTMT123,5130.2%–

17Carbon County, MTMT11,4660.2%–

18Custer County, MTMT12,0340.2%–

19Valley County, MTMT7,3850.2%–

20Sanders County, MTMT14,0620.2%–

21Beaverhead County, MTMT10,0430.1%–

22Gallatin County, MTMT128,7400.1%–

23Roosevelt County, MTMT10,2420.1%–

24Lake County, MTMT33,3920.1%–

25Ravalli County, MTMT48,5820.1%–

26Mineral County, MTMT5,1850.1%–

27Hill County, MTMT16,1670.1%–

28Pondera County, MTMT6,0720.1%–

29Teton County, MTMT6,4960.0%–

30Richland County, MTMT11,3770.0%–

31Madison County, MTMT10,0260.0%–

32Toole County, MTMT5,2110.0%–

33Blaine County, MTMT6,8600.0%–

34Powell County, MTMT7,1570.0%–

SHOWING 1–34 OF 34

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