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RANKING · 2020 CENSUS · 62 SHOWN OF 62

Highest Scotch-Irish population share, Colorado counties · 2020

Colorado counties ranked by the share of all residents who are Scotch-Irish ancestry (2020 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 62 counties in Colorado that qualify, ranked against each other statewide.

Scotch-Irish Americans: full group profile →
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RELATEDLargest American populationHighest American population shareLargest Arab populationHighest Arab population shareLargest Egyptian populationHighest Egyptian population share
YEAR201020202024
Highest Scotch-Irish population share by state
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RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2010
01Clear Creek County, COCO8,9943.0%−2.1 pts
02Archuleta County, COCO14,3062.6%+0.5 pts
03Chaffee County, COCO20,8312.5%+0.7 pts
04San Juan County, COCO8132.3%−6.3 pts
05Jackson County, COCO1,2112.3%+0.3 pts
06Washington County, COCO4,7322.2%−1.2 pts
07Custer County, COCO5,5902.2%−0.4 pts
08Mineral County, COCO9102.1%−0.8 pts
09Pitkin County, COCO16,6252.0%−0.2 pts
10Routt County, COCO25,3291.8%−0.6 pts
11San Miguel County, COCO7,7531.8%−0.2 pts
12Mesa County, COCO162,8451.7%−0.8 pts
13Gunnison County, COCO17,4391.6%−0.9 pts
14Crowley County, COCO5,6771.5%+0.5 pts
15Larimer County, COCO377,2921.5%−1.1 pts
16Boulder County, COCO328,5601.5%−1.2 pts
17Elbert County, COCO30,5341.5%−0.9 pts
18Moffat County, COCO13,1221.5%−0.5 pts
19Teller County, COCO24,7561.4%−2.4 pts
20Logan County, COCO20,6541.4%−1.2 pts
21Ouray County, COCO5,2651.4%−2.9 pts
22Otero County, COCO17,6831.4%−0.2 pts
23Montezuma County, COCO26,6781.3%−1.8 pts
24Rio Blanco County, COCO6,6831.3%−1.1 pts
25Dolores County, COCO2,4661.3%−6.7 pts
26Grand County, COCO16,4961.3%−0.8 pts
27Gilpin County, COCO6,0731.3%−0.9 pts
28Fremont County, COCO50,0391.2%−1.0 pts
29Lake County, COCO7,5521.2%−1.0 pts
30Jefferson County, COCO580,4511.2%−1.4 pts
31El Paso County, COCO757,0401.2%−1.2 pts
32Douglas County, COCO399,3961.1%−1.3 pts
33Prowers County, COCO11,8841.1%−0.4 pts
34Arapahoe County, COCO673,8201.1%−0.8 pts
35Montrose County, COCO44,5911.1%−1.1 pts
36Weld County, COCO378,4261.1%−0.8 pts
37Baca County, COCO3,3471.1%−2.6 pts
38Saguache County, COCO6,7321.1%−0.4 pts
39Broomfield County, COCO79,1741.0%−1.4 pts
40Morgan County, COCO30,3061.0%−1.2 pts
41Denver County, COCO740,6130.9%−0.8 pts
42Delta County, COCO32,1780.9%−2.0 pts
43Pueblo County, COCO169,2770.9%−0.6 pts
44Eagle County, COCO54,2910.9%−1.3 pts
45La Plata County, COCO56,8980.9%−2.0 pts
46Bent County, COCO5,7160.9%−0.2 pts
47Las Animas County, COCO14,3910.9%−1.5 pts
48Park County, COCO18,3140.8%−4.4 pts
49Sedgwick County, COCO2,2470.8%−2.2 pts
50Huerfano County, COCO7,0110.8%−4.1 pts
51Summit County, COCO31,5170.8%−1.9 pts
52Phillips County, COCO4,4200.7%−1.0 pts
53Costilla County, COCO3,6790.7%+0.1 pts
54Adams County, COCO554,6680.7%−0.8 pts
55Kit Carson County, COCO7,0690.7%−2.1 pts
56Garfield County, COCO63,4740.6%−1.5 pts
57Lincoln County, COCO5,6450.6%−3.1 pts
58Conejos County, COCO7,5290.5%−1.6 pts
59Alamosa County, COCO16,6880.5%−1.4 pts
60Rio Grande County, COCO11,0870.5%−2.2 pts
61Hinsdale County, COCO7530.3%−5.1 pts
62Yuma County, COCO9,8960.2%−2.8 pts
SHOWING 1–62 OF 62
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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS