Japanese Population in New Jersey by County : 2025 Ranking & Insights

According to U.S. Census estimates, the Japanese population in New Jersey totals 27,497. Every county in the state reports a non-zero population, with Bergen County leading at 8,159, followed by Hudson County (2,538) and Mercer County (1,832). This demographic analysis ranks all counties in New Jersey by their Japanese population, offering insights into regional distribution patterns and highlighting county-level concentrations across the state.

Top 5 counties with the largest Japanese population in New Jersey

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  • 1
    Bergen County
    Japanese population in Bergen County is 8,159
    0.85% of Bergen County population is Japanese
  • 2
    Hudson County
    Japanese population in Hudson County is 2,538
    0.36% of Hudson County population is Japanese
  • 3
    Mercer County
    Japanese population in Mercer County is 1,832
    0.48% of Mercer County population is Japanese
  • 4
    Essex County
    Japanese population in Essex County is 1,715
    0.20% of Essex County population is Japanese
  • 5
    Burlington County
    Japanese population in Burlington County is 1,607
    0.35% of Burlington County population is Japanese

Overview of Japanese population in New Jersey

  • Population Count and Percentage: American Community Survey data indicate New Jersey contains 27,497 Japanese residents (0.3% of 9.3 million total state population), positioning the state at the 77th percentile nationally among U.S. states for Japanese population concentrations.
  • Comparison to State and National Averages: U.S. Census surveys show New Jersey's Japanese demographic representation of 0.3% remains below the national average of 0.49%, positioning the state below typical U.S. demographic distribution patterns.
  • Share of Total National Population: Official American Community Survey document New Jersey's 27,497 Japanese residents constitute 1.7% of the nation's total Japanese population of 1.6 million, providing the state with a measurable but modest share of the national demographic community.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey document New Jersey with 3.7 Japanese Americans per square mile, just over eight times the national average density of 0.46 per square mile, placing the state among jurisdictions with significantly elevated demographic concentrations nationally.
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21 Counties in New Jersey Ranked by Japanese Population

View Methodology
American Community Survey data [1] show Japanese populations across every county in New Jersey, with demographic distributions ranging from the highest population in Bergen County to the lowest in $rank_n_geo_name. The table below provides broader statistics, including total population figures, density measures, and demographic distributions based on current ACS data for all counties included in this analysis*.
counties in New Jersey ranked by Japanese population count
Rank by Japanese Population
County
Japanese Population
% of Total County Population
% of Total New Jersey Japanese Population
5 Year Rank Trend
1 Bergen County 8,159 0.85% 29.67%
2 Hudson County 2,538 0.36% 9.23%
3 Mercer County 1,832 0.48% 6.66%
4 Essex County 1,715 0.20% 6.24%
5 Burlington County 1,607 0.35% 5.84%
6 Middlesex County 1,514 0.18% 5.51%
7 Union County 1,495 0.26% 5.44%
8 1,449 0.28% 5.27%
9 1,436 0.28% 5.22%
10 1,054 0.16% 3.83%
11 992 0.29% 3.61%
12 924 0.14% 3.36%
13 736 0.27% 2.68%
14 680 0.13% 2.47%
15 447 0.15% 1.63%
16 277 0.18% 1.01%
17 194 0.13% 0.71%
18 136 0.21% 0.49%
19 116 0.09% 0.42%
20 108 0.11% 0.39%
21 88 0.08% 0.32%
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Methodology

This ranking list is based on data from the American Community Survey (ACS) 5-Year Estimates, conducted by the U.S. Census Bureau. The ACS is one of the most reliable sources for understanding population trends across different locations, and it provides estimates for various racial and ethnic groups at city, county, state and all geography levels down to the Census block group.
This list ranks county in New Jersey by their Japanese population, using the most recent ACS data available.

How the Census defines Japanese population

The U.S. Census Bureau allows people to self-identify their ancestry, meaning individuals can write upto ancestries when responding to the survey. In this ranking, we include everyone who identifies as having Japanese ancestry, whether alone or in combination with another ancestry.
Here are a few important things to know about how ancestry is reported:
  • Some people identify as Japanese alone, while others identify as Japanese along with another race (such as Japanese and German).
  • We’ve used the “Japanese alone or in any combination” category unless noted otherwise, which gives a broader picture of the Japanese population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Japanese alone or in combination in county. To provide additional context, we’ve also included two key percentages:
  1. % of Total County Population – This shows what percentage of the total state population identifies as Japanese .
  2. % of Total New Jersey Japanese Population – This tells us how much of the entire U.S. Japanese population lives in that state.
To keep things simple, all population numbers have been rounded to the nearest whole number, and percentages are rounded to one decimal place. Because of rounding, some percentages may not add up to exactly 100%.

Things to Keep in Mind

Like all survey-based data, ACS estimates come with some limitations. Here are a few things to be aware of:
  • In places with very small Japanese populations, the numbers may not be reported at all due to privacy protections or sampling variability in the survey.
  • Since the ACS is based on a sample, the numbers are estimates, not exact counts. That means they may slightly differ from other sources like the decennial U.S. Census.
  • County that don’t have any reported Japanese population are not included in the ranking but are listed separately below for reference.
This ranking is meant to provide a clear, data-driven look at where Japanese populations are most concentrated while keeping the numbers easy to understand.

Sources

  1. 2019-2023 5-Year Estimates.
  2. 2023.