RANKING · 2010 CENSUS · 34 SHOWN OF 34

Highest Romanian population share, Colorado counties · 2010

Colorado 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 34 counties in Colorado that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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

01Sedgwick County, COCO2,2471.1%–

02San Miguel County, COCO7,7530.6%–

03Costilla County, COCO3,6790.3%–

04Summit County, COCO31,5170.3%–

05Lincoln County, COCO5,6450.3%–

06Park County, COCO18,3140.3%–

07Huerfano County, COCO7,0110.2%–

08Teller County, COCO24,7560.2%–

09Fremont County, COCO50,0390.2%–

10Jefferson County, COCO580,4510.2%–

11Boulder County, COCO328,5600.2%–

12Denver County, COCO740,6130.2%–

13Mesa County, COCO162,8450.2%–

14Routt County, COCO25,3290.2%–

15Otero County, COCO17,6830.1%–

16Arapahoe County, COCO673,8200.1%–

17El Paso County, COCO757,0400.1%–

18Larimer County, COCO377,2920.1%–

19Saguache County, COCO6,7320.1%–

20Pueblo County, COCO169,2770.1%–

21Pitkin County, COCO16,6250.1%–

22Grand County, COCO16,4960.1%–

23Montezuma County, COCO26,6780.1%–

24Douglas County, COCO399,3960.1%–

25Delta County, COCO32,1780.1%–

26Chaffee County, COCO20,8310.1%–

27Weld County, COCO378,4260.1%–

28Broomfield County, COCO79,1740.0%–

29Adams County, COCO554,6680.0%–

30Alamosa County, COCO16,6880.0%–

31La Plata County, COCO56,8980.0%–

32Morgan County, COCO30,3060.0%–

33Garfield County, COCO63,4740.0%–

34Eagle County, COCO54,2910.0%–

SHOWING 1–34 OF 34

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