Ranking of Colorado Counties By Population with Romanian Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 6.33K people in Colorado with Romanian ancestry. Among all Colorado counties, Jefferson County had the highest population with Romanian ancestry (1.05K), followed by Arapahoe County (886), and Denver County (832).

The chart and table below shows the top 10 counties with high number of people with Romanian ancestry.

You can see similar information for other states and for other ancestry groups in Colorado.

Data Source: US Census Bureau.
Ranking of Colorado Counties By Population with Romanian Ancestry in 2021
Jefferson County
Arapahoe County
Denver County
Douglas County
El Paso County
Boulder County
Larimer County
Weld County
Adams County
Summit County
Ranking of Colorado Counties By Population with Romanian Ancestry in 2021
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Rank County Population
1 Jefferson County 1053
2 Arapahoe County 886
3 Denver County 832
4 Douglas County 648
5 El Paso County 624
6 Boulder County 604
7 Larimer County 303
8 Weld County 233
9 Adams County 183
10 Summit County 177
11 Mesa County 154
11 Pueblo County 154
12 Lake County 146
13 Morgan County 62
14 Eagle County 58
15 Broomfield County 50
16 Routt County 42
17 Ouray County 19
17 San Miguel County 19
18 Clear Creek County 11
19 Chaffee County 9
19 Garfield County 9
20 Grand County 8
20 Sedgwick County 8
21 Kit Carson County 7
22 Elbert County 5
22 Gilpin County 5
23 Huerfano County 4
23 Lincoln County 4
24 Delta County 3
24 La Plata County 3
24 Las Animas County 3
24 Montezuma County 3
25 Prowers County 1