Chinese Population in Union County, NJ by City : 2025 Ranking & Insights

The Chinese population in Union County, NJ is reported at 9,307 residents, according to recent U.S. Census estimates. Most cities in Union County - including Berkeley Heights township, New Providence, Summit, and others - report some Chinese presence. With a total matching the county''s, this suggests a fully urbanized footprint for the group. The section below compares this even spread with similar counties in New Jersey.

Top 5 cities with the largest Chinese population in Union County

View All
  • 1
    Berkeley Heights township
    Chinese population in Berkeley Heights township is 1,302
    9.92% of Berkeley Heights township population is Chinese
  • 2
    New Providence
    Chinese population in New Providence is 1,020
    7.51% of New Providence population is Chinese
  • 3
    Summit
    Chinese population in Summit is 957
    4.25% of Summit population is Chinese
  • 4
    Westfield
    Chinese population in Westfield is 938
    3.05% of Westfield population is Chinese
  • 5
    Union township
    Chinese population in Union township is 757
    1.26% of Union township population is Chinese

Overview of Chinese population in Union County

  • Population Count and Percentage: American Community Survey data shows Union County contains 9,307 Chinese residents (1.6% of 572,549 total county population), ranking the jurisdiction at the 97th percentile nationally among counties and 57th percentile within New Jersey for Chinese demographic concentrations across both absolute and proportional measures.
  • Comparison to State and National Averages: Census Bureau's ACS document Union County's Chinese demographic representation of 1.6%, aligning with the national average while remaining below New Jersey's elevated state average of 1.9%, placing the county as nationally typical while locally underrepresented.
  • Share of Total State Population: Official American Community Survey data documents Union County with 9,307 Chinese residents, representing 5.2% of New Jersey's total Chinese population of 179,226.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey indicate Union County's density of 90.6 Chinese Americans per square mile exceeds New Jersey's average of 24.4 per square mile by three and three-quarters times, establishing the county as a significant concentration center for Chinese demographic communities.
  • Need additional overviews? Extended research data available for purchase and license. ➔

21 Cities in Union County Ranked by Chinese Population

View Methodology
ACS data [1] show Chinese populations distributed across multiple cities in the county, led by Berkeley Heights township, New Providence, Summit, and Westfield. The table below provides additional context, including total population, population density, and demographic distributions, based on current ACS data for 21 incorporated cities included in this analysis*.
cities in Union County, NJ ranked by Chinese population count
Rank by Chinese Population
City
Chinese Population
% of Total City Population
% of Total Union County Chinese Population
5 Year Rank Trend
1 Berkeley Heights township 1,302 9.92% 13.99%
2 New Providence 1,020 7.51% 10.96%
3 Summit 957 4.25% 10.28%
4 Westfield 938 3.05% 10.08%
5 Union township 757 1.26% 8.13%
6 Mountainside 714 10.25% 7.67%
7 Scotch Plains township 559 2.27% 6.01%
8 525 1.20% 5.64%
9 520 3.06% 5.59%
10 474 3.39% 5.09%
11 445 1.50% 4.78%
12 367 1.54% 3.94%
13 295 0.22% 3.17%
14 187 2.42% 2.01%
15 103 0.67% 1.11%
16 91 1.94% 0.98%
17 35 0.16% 0.38%
18 13 0.02% 0.14%
19 5 0.02% 0.05%
20 0 - -
20 0 - -
Need the complete table? Full rankings and the underlying data sets for California and other locations are available for purchase or license.

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 city in Union County, NJ by their Chinese population, using the most recent ACS data available.

How the Census defines Chinese 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 Chinese 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 Chinese alone, while others identify as Chinese along with another race (such as Chinese and German).
  • We’ve used the “Chinese alone or in any combination” category unless noted otherwise, which gives a broader picture of the Chinese population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Chinese alone or in combination in city. To provide additional context, we’ve also included two key percentages:
  1. % of Total City Population – This shows what percentage of the total state population identifies as Chinese .
  2. % of Total Union County Chinese Population – This tells us how much of the entire U.S. Chinese 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 Chinese 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.
  • City that don’t have any reported Chinese 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 Chinese populations are most concentrated while keeping the numbers easy to understand.

Sources

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