RANKING · 2024 ACS · 15 SHOWN OF 15

Highest Scotch-Irish population share, Arizona counties

Arizona counties ranked by the share of all residents who are Scotch-Irish ancestry (2024 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 15 counties in Arizona that qualify, ranked against each other statewide. The median across all 15 is 0.8%. Biggest climber in the top 100 since 2020: Graham County, AZ, up 6 places to #4.

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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

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2010

01Yavapai County, AZAZ252,5521.7%−0.9 pts

02▲1Gila County, AZAZ53,8011.2%−0.6 pts

03▲2Mohave County, AZAZ228,1021.0%−1.2 pts

04▲6Graham County, AZAZ40,1570.9%0.0 pts

05▲1Pima County, AZAZ1,074,6850.9%−0.9 pts

06▲2Cochise County, AZAZ126,3320.8%−1.1 pts

07▼3Navajo County, AZAZ109,9460.8%−2.1 pts

08▲4Apache County, AZAZ64,4450.8%−0.1 pts

09▲2Pinal County, AZAZ539,3800.7%−1.1 pts

10▼3Coconino County, AZAZ144,3680.6%−1.2 pts

11▼2Maricopa County, AZAZ4,689,5580.6%−0.9 pts

12▲1Yuma County, AZAZ224,4490.4%−0.8 pts

13▼11La Paz County, AZAZ16,7110.3%−2.1 pts

14Greenlee County, AZAZ9,3120.2%−1.0 pts

15Santa Cruz County, AZAZ50,0200.1%−0.3 pts

SHOWING 1–15 OF 15

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES