RANKING · 2010 CENSUS · 21 SHOWN OF 21

Highest Welsh population share, New Jersey counties · 2010

New Jersey counties ranked by the share of all residents who are Welsh ancestry (2010 American Community Survey). A concentration measure: Welsh residents as a percentage of total population. This list covers the 21 counties in New Jersey that qualify, ranked against each other statewide. The median across all 21 is 0.6%.

Welsh Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPWELSH SHAREVS –

01Warren County, NJNJ112,9531.1%–

02Cape May County, NJNJ93,3901.1%–

03Salem County, NJNJ66,2801.0%–

04Gloucester County, NJNJ312,6380.9%–

05Hunterdon County, NJNJ131,7810.9%–

06Sussex County, NJNJ148,0630.9%–

07Burlington County, NJNJ481,4390.8%–

08Atlantic County, NJNJ278,6570.6%–

09Ocean County, NJNJ673,7460.6%–

10Camden County, NJNJ535,7990.6%–

11Morris County, NJNJ524,2510.6%–

12Cumberland County, NJNJ157,1480.5%–

13Mercer County, NJNJ399,2890.5%–

14Somerset County, NJNJ356,4860.5%–

15Monmouth County, NJNJ651,0350.4%–

16Bergen County, NJNJ977,0260.3%–

17Union County, NJNJ601,8630.2%–

18Middlesex County, NJNJ883,3350.2%–

19Passaic County, NJNJ531,6240.2%–

20Essex County, NJNJ896,3790.2%–

21Hudson County, NJNJ735,0330.1%–

SHOWING 1–21 OF 21

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS