Dominican Population in Middlesex County, NJ by City : 2025 Ranking & Insights

The Dominican population in Middlesex County, NJ is recorded at 51,253 residents, based on the latest U.S. Census estimates. Every city in Middlesex County reports some Dominican residents. With no unincorporated share evident in the totals, this points to a completely city-based population. The sections below explores how Dominican residents are distributed in New Jersey and the U.S.

Top 5 cities with the largest Dominican population in Middlesex County

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  • 1
    Perth Amboy
    Dominican population in Perth Amboy is 23,721
    42.91% of Perth Amboy population is Dominican
  • 2
    New Brunswick
    Dominican population in New Brunswick is 5,518
    9.90% of New Brunswick population is Dominican
  • 3
    Woodbridge township
    Dominican population in Woodbridge township is 4,707
    4.55% of Woodbridge township population is Dominican
  • 4
    North Brunswick township
    Dominican population in North Brunswick township is 2,785
    6.35% of North Brunswick township population is Dominican
  • 5
    Old Bridge township
    Dominican population in Old Bridge township is 1,870
    2.77% of Old Bridge township population is Dominican

Overview of Dominican population in Middlesex County

  • Population Count and Percentage: American Community Survey data shows Middlesex County contains 51,253 Dominican residents (5.9% of 861,535 total county population), ranking the jurisdiction at the 99th percentile nationally among counties and 85th percentile within New Jersey for Dominican demographic concentrations across both absolute and proportional measures.
  • Comparison to State and National Averages: Census Bureau's ACS show Middlesex County's Dominican population of 5.9% surpassing both New Jersey's state average of 4% and the national average of 0.7%, positioning the county as a high-concentration jurisdiction exceeding demographic benchmarks across all geographic scales.
  • Share of Total State Population: Official American Community Survey indicate Middlesex County's 51,253 Dominican residents constitute 13.9% of New Jersey's total Dominican population of 367,576, placing the county among jurisdictions with the highest demographic concentrations, with 13.9% of all New Jersey Dominican Americans residing within county boundaries.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey indicate Middlesex County's density of 165.7 Dominican Americans per square mile exceeds New Jersey's average of 50 per square mile by more than triple, establishing the county as a significant concentration center for Dominican demographic communities.
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25 Cities in Middlesex County Ranked by Dominican Population

View Methodology
ACS data [1] confirm Dominican populations in every incorporated city in the county, with the largest counts in Perth Amboy, New Brunswick, Woodbridge township, and North Brunswick township. The table below provides detailed figures, including total population, density measures, and demographic distributions, based on the current ACS data for all 25 incorporated cities included in this analysis*.
cities in Middlesex County, NJ ranked by Dominican population count
Rank by Dominican Population
City
Dominican Population
% of Total City Population
% of Total Middlesex County Dominican Population
5 Year Rank Trend
1 Perth Amboy 23,721 42.91% 46.28%
2 New Brunswick 5,518 9.90% 10.77%
3 Woodbridge township 4,707 4.55% 9.18%
4 North Brunswick township 2,785 6.35% 5.43%
5 Old Bridge township 1,870 2.77% 3.65%
6 Edison township 1,852 1.73% 3.61%
7 Carteret 1,839 7.30% 3.59%
8 1,824 3.01% 3.56%
9 1,775 3.92% 3.46%
10 1,135 2.30% 2.21%
11 814 1.69% 1.59%
12 606 2.50% 1.18%
13 553 5.69% 1.08%
14 498 8.64% 0.97%
15 424 0.91% 0.83%
16 413 2.84% 0.81%
17 344 2.15% 0.67%
18 181 1.21% 0.35%
19 148 0.62% 0.29%
20 128 0.85% 0.25%
21 46 0.60% 0.09%
22 32 0.79% 0.06%
23 26 0.37% 0.05%
24 9 0.11% 0.02%
25 5 0.22% 0.01%
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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 city in Middlesex County, NJ by their Dominican population, using the most recent ACS data available.

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

How We Ranked the Data

This ranking is based on the total number of people who identified as Dominican 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 Dominican .
  2. % of Total Middlesex County Dominican Population – This tells us how much of the entire U.S. Dominican 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 Dominican 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 Dominican 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 Dominican populations are most concentrated while keeping the numbers easy to understand.

Sources

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