2025

Cities in Suffolk County, NY ranked by Non-Hispanic White Population

This list ranks the 41 cities in Suffolk County based on their Non-Hispanic White population, as estimated by the United States Census Bureau. It also highlights population changes in these cities over the past five years.
Updated Feb 11, 2025

Top 5 cities with the largest Non-Hispanic White population in Suffolk County

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  • 1
    Brookhaven town
    Non-Hispanic White population in Brookhaven town is 328,367
    61.29% of Brookhaven town population is Non-Hispanic White
  • 2
    Islip town
    Non-Hispanic White population in Islip town is 165,095
    42.77% of Islip town population is Non-Hispanic White
  • 3
    Huntington town
    Non-Hispanic White population in Huntington town is 150,641
    67.99% of Huntington town population is Non-Hispanic White
  • 4
    Babylon town
    Non-Hispanic White population in Babylon town is 113,851
    46.83% of Babylon town population is Non-Hispanic White
  • 5
    Smithtown town
    Non-Hispanic White population in Smithtown town is 93,029
    74.50% of Smithtown town population is Non-Hispanic White

List of 41 cities in Suffolk County, NY by Non-Hispanic White Population

View Methodology
Rank by Non-Hispanic White Population
City
Non-Hispanic White Population
% of Total City Population
% of Total Suffolk County Non-Hispanic White Population
5 Year Rank Trend
1 Brookhaven town 328,367 61.29% 31.03%
2 Islip town 165,095 42.77% 15.60%
3 Huntington town 150,641 67.99% 14.24%
4 Babylon town 113,851 46.83% 10.76%
5 Smithtown town 93,029 74.50% 8.79%
6 Southampton town 46,569 60.16% 4.40%
7 Riverhead town 24,650 63.87% 2.33%
8 20,171 68.70% 1.91%
9 19,898 79.79% 1.88%
10 19,068 55.91% 1.80%
11 10,192 78.56% 0.96%
12 7,754 57.20% 0.73%
13 7,527 62.31% 0.71%
14 6,958 68.84% 0.66%
15 6,606 84.11% 0.62%
16 6,357 74.31% 0.60%
17 3,513 72.66% 0.33%
18 3,004 79.79% 0.28%
19 2,705 79.91% 0.26%
20 2,190 62.71% 0.21%
21 2,161 83.28% 0.20%
22 2,107 80.42% 0.20%
23 1,723 89.69% 0.16%
24 1,592 79.56% 0.15%
25 1,583 85.34% 0.15%
26 1,482 53.99% 0.14%
27 1,227 67.79% 0.12%
28 1,135 27.44% 0.11%
29 1,036 67.06% 0.10%
30 984 69.59% 0.09%
31 858 83.79% 0.08%
32 856 79.63% 0.08%
33 806 72.22% 0.08%
34 649 79.83% 0.06%
35 642 85.71% 0.06%
36 437 59.38% 0.04%
37 416 72.22% 0.04%
38 206 73.05% 0.02%
39 101 100.00% 0.01%
40 36 100.00% -
41 26 100.00% -

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 cities in Suffolk County, NY by their Non-Hispanic White population, using the most recent ACS data available.

How the Census Defines Non-Hispanic White Population

The U.S. Census Bureau allows people to self-identify their race, meaning individuals can choose one or more racial categories when responding to the survey. In this ranking, we include everyone who identifies as Non-Hispanic White, whether alone or in combination with another race.
Here are a few important things to know about how race is reported:
  • Some people identify as Non-Hispanic White alone, while others identify as Non-Hispanic White along with another race (such as Non-Hispanic White and White).
  • Hispanic / Latino origin is reported separately from race, so someone can be both Hispanic and Non-Hispanic White .
  • We’ve used the “Non-Hispanic White alone or in combination” category unless noted otherwise, which gives a broader picture of the Non-Hispanic White population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Non-Hispanic White alone or in combination in cities. 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 Non-Hispanic White .
  2. % of Total Suffolk County Non-Hispanic White Population – This tells us how much of the entire U.S. Non-Hispanic White 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 Non-Hispanic White 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.
  • Cities that don’t have any reported Non-Hispanic White 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 Non-Hispanic White populations are most concentrated while keeping the numbers easy to understand.

Sources

U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.