Ranking of Colorado Counties By Population with Icelander Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.67K people in Colorado with Icelander ancestry. Among all Colorado counties, Boulder County had the highest population with Icelander ancestry (353), followed by Jefferson County (234), and Arapahoe County (163).

The chart and table below shows the top 10 counties with high number of people with Icelander 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 Icelander Ancestry in 2021
Boulder County
Jefferson County
Arapahoe County
El Paso County
Denver County
Larimer County
Fremont County
Douglas County
Park County
Pueblo County
Ranking of Colorado Counties By Population with Icelander Ancestry in 2021
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Rank County Population
1 Boulder County 353
2 Jefferson County 234
3 Arapahoe County 163
4 El Paso County 158
5 Denver County 137
6 Larimer County 116
7 Fremont County 106
8 Douglas County 89
9 Park County 84
10 Pueblo County 69
11 Summit County 41
12 Chaffee County 31
13 Delta County 20
14 Weld County 16
15 Clear Creek County 15
16 Garfield County 8
16 Montrose County 8
17 Broomfield County 5
17 Logan County 5
18 Alamosa County 4
18 Archuleta County 4
18 Sedgwick County 4