RANKING · 2020 CENSUS · 21 SHOWN OF 21

Largest Welsh population, New Jersey counties · 2020

New Jersey counties ranked by the number of residents who are Welsh ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 21 counties in New Jersey that qualify, ranked against each other statewide.

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 POPULATIONVS 2010

01Burlington County, NJNJ481,4393,724+0%

02Camden County, NJNJ535,7992,873−4%

03Gloucester County, NJNJ312,6382,507−2%

04Ocean County, NJNJ673,7462,049−42%

05Monmouth County, NJNJ651,0352,028−20%

06Morris County, NJNJ524,2511,765−36%

07Bergen County, NJNJ977,0261,513−42%

08Middlesex County, NJNJ883,3351,506−15%

09Mercer County, NJNJ399,2891,448−22%

10Atlantic County, NJNJ278,6571,114−34%

11Essex County, NJNJ896,3791,064−23%

12Warren County, NJNJ112,953990−21%

13Cape May County, NJNJ93,390989−4%

14Somerset County, NJNJ356,486952−41%

15Union County, NJNJ601,863881−27%

16Hunterdon County, NJNJ131,781842−26%

17Hudson County, NJNJ735,033729−16%

18Passaic County, NJNJ531,624663−34%

19Salem County, NJNJ66,280645−7%

20Sussex County, NJNJ148,063644−50%

21Cumberland County, NJNJ157,148560−31%

SHOWING 1–21 OF 21

Download CSV (full list, 21 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS