RANKING · 2010 CENSUS · 12 SHOWN OF 12

Highest Bulgarian population share, Montana counties · 2010

Montana counties ranked by the share of all residents who are Bulgarian ancestry (2023 American Community Survey). A concentration measure: Bulgarian residents as a percentage of total population. This list covers the 12 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

Highest Bulgarian population share by state

RANKPLACESTATEPOPBULGARIAN SHAREVS 2000

01Powder River County, MTMT1,7810.5%–

02Toole County, MTMT5,2110.3%–

03Wheatland County, MTMT2,1000.2%–

04Custer County, MTMT12,0340.1%–

05Lincoln County, MTMT22,3280.1%–

06Pondera County, MTMT6,0720.0%–

07Silver Bow County, MTMT36,1180.0%–

08Lewis and Clark County, MTMT75,3310.0%–

09Flathead County, MTMT115,4290.0%–

10Gallatin County, MTMT128,7400.0%–

11Yellowstone County, MTMT172,6920.0%–

12Lake County, MTMT33,3920.0%–

SHOWING 1–12 OF 12

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