RANKING · 2020 CENSUS · 23 SHOWN OF 23

Highest Romanian population share, Idaho counties · 2020

Idaho 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 Idaho 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

01Custer County, IDID4,6360.7%–

02Lincoln County, IDID5,6030.5%–

03Bear Lake County, IDID6,7270.4%–

04Teton County, IDID13,2540.3%–

05Kootenai County, IDID191,8640.2%–

06Bonner County, IDID54,4200.2%–

07Ada County, IDID546,1410.2%–

08Bannock County, IDID91,5910.1%–

09Twin Falls County, IDID97,5390.1%–

10Franklin County, IDID15,8890.1%–

11Canyon County, IDID275,1230.1%–

12Bonneville County, IDID135,7710.1%–

13Fremont County, IDID14,2080.1%–

14Nez Perce County, IDID42,9050.1%–

15Washington County, IDID11,5830.1%–

16Idaho County, IDID17,8740.1%–

17Elmore County, IDID29,4650.0%–

18Lemhi County, IDID8,4740.0%–

19Caribou County, IDID7,2520.0%–

20Latah County, IDID41,8420.0%–

21Lewis County, IDID3,7040.0%–

22Boise County, IDID8,5450.0%–

23Payette County, IDID27,8240.0%–

SHOWING 1–23 OF 23

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