Data / Rankings / Foreign-born population share / Counties in New Jersey

Counties in New Jersey by foreign-born share of the population, 2024

Hudson County had the highest foreign-born share of the population of 21 counties in 2024, at 42.8%. Salem County had the lowest, at 3.1%. The median was 13.6% and the figure for New Jersey was 23.9%. Source: the U.S. Census Bureau.

Highest42.8Hudson County
Lowest3.1Salem County
Median13.621 counties
New Jersey23.9History

All counties, 2024

CSVChart (SVG)

Hudson CountyHudson County: 42.8 %42.8Middlesex CountyMiddlesex County: 35.4 %35.4Union CountyUnion County: 33.6 %33.6Passaic CountyPassaic County: 33.1 %33.1Bergen CountyBergen County: 31.8 %31.8Essex CountyEssex County: 30.1 %30.1Somerset CountySomerset County: 27.9 %27.9Mercer CountyMercer County: 27 %27Morris CountyMorris County: 19.8 %19.8Atlantic CountyAtlantic County: 15.9 %15.9Monmouth CountyMonmouth County: 13.6 %13.6Cumberland CountyCumberland County: 12.7 %12.7Camden CountyCamden County: 12.3 %12.3Burlington CountyBurlington County: 11 %11Warren CountyWarren County: 10.6 %10.6Hunterdon CountyHunterdon County: 10.6 %10.6Sussex CountySussex County: 8.8 %8.8Ocean CountyOcean County: 8 %8Gloucester CountyGloucester County: 6.1 %6.1Cape May CountyCape May County: 4.6 %4.6Salem CountySalem County: 3.1 %3.1
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2024 (%)Change on 2023
1Hudson County42.8+0.3 pts
2Middlesex County35.4+0.7 pts
3Union County33.6+0.8 pts
4Passaic County33.1+0.3 pts
5Bergen County31.8+0.4 pts
6Essex County30.1+0.8 pts
7Somerset County27.9+0.4 pts
8Mercer County27+1.4 pts
9Morris County19.8+0.1 pts
10Atlantic County15.9-0.2 pts
11Monmouth County13.60 pts
12Cumberland County12.7+0.6 pts
13Camden County12.3+0.1 pts
14Burlington County11+0.2 pts
15Warren County10.6+0.3 pts
16Hunterdon County10.6-0.6 pts
17Sussex County8.8+0.1 pts
18Ocean County8+0.1 pts
19Gloucester County6.1+0.4 pts
20Cape May County4.6-0.2 pts
21Salem County3.10 pts

Other periods

About this ranking

People who were not US citizens at birth, as a percentage of the total population. Includes naturalized citizens, lawful permanent residents, temporary migrants and unauthorized immigrants. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Based on place of birth, not nationality: a naturalized citizen counts as foreign born, and people born in Puerto Rico, the US island areas or abroad to American parents count as native. Not comparable with foreign_population_share, which counts foreign nationals in Spain and the EU. Calculated from counts in ACS table B05002, which are stored as inputs.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b05002.dat. Retrieved 2026-10-09.

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Rank Counties in New Jersey by foreign-born share of the population using official data, and cite the source.
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Questions

Which county has the highest foreign-born share of the population?

Hudson County, with 42.8% in 2024, according to the U.S. Census Bureau.

Which county has the lowest foreign-born share of the population?

Salem County, with 3.1% in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. Retrieved 2026-10-09.

Foreign-born population share: other rankings

Counties in New Jersey: more rankings