Ranking of New Jersey Counties By Percentage of Population with Celtic Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 746 people in New Jersey with Celtic ancestry (0.01% of New Jersey population). Among all New Jersey counties, Burlington County had the highest percentage of its population with Celtic ancestry (0.03%), followed by Morris County (0.03%), and Warren County (0.03%).

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

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

Data Source: US Census Bureau.
Ranking of New Jersey Counties By Percentage of Population with Celtic Ancestry in 2021
Burlington County
Morris County
Warren County
Mercer County
Atlantic County
Cumberland County
Essex County
Hunterdon County
Monmouth County
Ocean County
Ranking of New Jersey Counties By Percentage of Population with Celtic Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Burlington County 0.03
1 Morris County 0.03
1 Warren County 0.03
2 Mercer County 0.02
3 Atlantic County 0.01
3 Cumberland County 0.01
3 Essex County 0.01
3 Hunterdon County 0.01
3 Monmouth County 0.01
3 Ocean County 0.01
3 Sussex County 0.01
3 Union County 0.01
4 Gloucester County 0.003
4 Passaic County 0.003
4 Somerset County 0.003
5 Camden County 0.002
5 Middlesex County 0.002
6 Bergen County 0.001
6 Hudson County 0.001