Ranking of Delaware Cities and Places By Percentage of Population with Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 139.62K people in Delaware with Irish ancestry (14.22% of Delaware population). Among all Delaware cities and places with a population of at least 10K, Hockessin CDP had the highest percentage of its population with Irish ancestry (19.64%), followed by Smyrna town (14.41%), and Newark city (14.28%).

The chart and table below shows the top 10 cities with high percentage of its population having Irish ancestry.

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

Data Source: US Census Bureau.
Ranking of Delaware Cities and Places By Percentage of Population with Irish Ancestry in 2021
Hockessin CDP
Smyrna town
Newark city
Pike Creek Valley CDP
Middletown town
Milford city
Brookside CDP
Glasgow CDP
Dover city
Bear CDP
Ranking of Delaware Cities and Places By Percentage of Population with Irish Ancestry in 2021
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Rank Ciy or Place Percentage of Pop. (%)
1 Hockessin CDP 19.64
2 Smyrna town 14.41
3 Newark city 14.28
4 Pike Creek Valley CDP 14.04
5 Middletown town 14.03
6 Milford city 12.93
7 Brookside CDP 11.17
8 Glasgow CDP 11.15
9 Dover city 10.66
10 Bear CDP 9.25
11 Wilmington city 8.21