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

Based on the US Census ACS-5Yrs estimates, in 2021, there were 304.14K people in New Jersey with American ancestry (3.29% of New Jersey population). Among all New Jersey counties, Ocean County had the highest percentage of its population with American ancestry (6.31%), followed by Sussex County (4.95%), and Salem County (4.29%).

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

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