RANKING · 2010 CENSUS · 19 SHOWN OF 19

Largest Bulgarian population, Colorado counties · 2010

Colorado counties ranked by the number of residents who are Bulgarian ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 19 counties in Colorado 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

Largest Bulgarian population by state

RANKPLACESTATEPOPBULGARIAN POPULATIONVS 2000

01Adams County, COCO554,668609–

02Jefferson County, COCO580,451269–

03Larimer County, COCO377,292237–

04Douglas County, COCO399,396170–

05Denver County, COCO740,613139–

06Boulder County, COCO328,560136–

07Weld County, COCO378,426135–

08Arapahoe County, COCO673,82082–

09El Paso County, COCO757,04076–

10Grand County, COCO16,49673–

11Summit County, COCO31,51745–

12Eagle County, COCO54,29137–

13Delta County, COCO32,17819–

14Chaffee County, COCO20,83115–

15La Plata County, COCO56,89811–

16Routt County, COCO25,32911–

17Costilla County, COCO3,6797–

18Bent County, COCO5,7166–

19Custer County, COCO5,5901–

SHOWING 1–19 OF 19

Download CSV (full list, 19 rows)

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