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Syosset, New York Demographics & Population 2026

During the 2020–2024 ACS period, Syosset, New York had a total population of 18,433, the 98th largest community in New York, with a median household income of $187,273, which is 118% higher than the state average. The poverty rate is 4.2%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Key Takeaways

Syosset Quick Facts

Population 18,433
Median Household Income $187,273
Median Home Value $874,300
Poverty Rate 4.2%
Unemployment Rate 3.6%
Median Age 42.8 years
Homeownership Rate 92.4%
Affordability Ratio 4.7x
Bachelor's Degree or Higher 69.1%
High School Graduation Rate 96.1%
Diversity Index 54/100
Population 18,433 98th of 1,289
Median Income $187,273 top 10%
Poverty Rate 4.2% 66% lower than national
Median Home Value $874,300 top 10%

How Syosset Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric2019–20232020–2024Change
Population18,27418,433+0.9%
Median household income$187,936$187,273-0.4%
Median home value$854,500$874,300+2.3%

How Syosset Compares

Economy & Housing

Household Income Distribution

Under $25K 7.3%
$25K-$50K 6.8%
$50K-$100K 14.0%
$100K+ 71.8%
Detailed income brackets
Under $10K
2.6%
$10K-$15K
2.4%
$15K-$20K
0.4%
$20K-$25K
1.9%
$25K-$30K
0.4%
$30K-$35K
2.9%
$35K-$40K
1.7%
$40K-$45K
0.8%
$45K-$50K
1.0%
$50K-$60K
3.1%
$60K-$75K
3.2%
$75K-$100K
7.7%
$100K-$125K
7.0%
$125K-$150K
5.5%
$150K-$200K
12.2%
$200K+
47.1%

Employment

3.6% Unemployment Rate State: 6.4%|National: 5.2%
64.4% Labor Force Participation

Housing Overview

Owner 92.4%
Renter 7.6%
Affordability Index Moderate
4.7x home value to income ratio
Median gross rent $3,036/mo 19.5% of median household income annually

People & Demographics

Diversity Index

54out of 100
Moderate Diversity

Moderate diversity with one or two groups making up the majority.

State average: 65 | National average: 61

Education

Syosset Rankings in New York

#98 Population of 1,289
#79 Median Income of 1,219
#108 Education of 1,288
#116 Home Value of 1,232

Other Cities in Nassau County

CityPopulationMedian IncomePovertyHome Value
Hempstead 58,801 $90,420 14.4% $459,500
Levittown 51,904 $146,068 4.7% $590,500
Freeport 44,088 $120,625 7.4% $505,900
Hicksville 43,780 $144,471 3.9% $634,100
Valley Stream 40,315 $133,190 5.5% $616,100
East Meadow 36,821 $133,971 6.4% $631,800
Elmont 36,518 $114,217 5.0% $602,900
Baldwin 34,994 $145,472 6.6% $593,800
Long Beach 34,756 $140,739 7.6% $696,400
Uniondale 33,148 $124,684 9.2% $539,000

Cities Similar to Syosset

These cities in the same state have comparable population and economic profiles.

CityPopulationMedian IncomeHome ValueBachelor's+Poverty
Wantagh18,365$179,362$706,60054.2%3.1%
Woodmere18,061$172,537$975,40063.6%2.1%
Port Washington18,004$170,127$1,003,20072.1%4.1%
Massapequa Park16,963$171,953$642,60053.7%3.1%
North Bellmore20,689$181,662$659,20053.1%1.2%

Population Overview

Syosset is a small city located in New York, within Nassau County. The total population is 18,433. It ranks as the 98th most populous out of 1,289 Census-designated places in New York.

Age Demographics

The median age in Syosset is 42.8 years. This is 8% higher than the state median of 39.8 years. With 28.4% of the population under 18, Syosset has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Syosset is $187,273. This is 118% higher than the state median of $85,974. It is also 132% higher than the national median of $80,734. The poverty rate stands at 4.2%. This is 70% lower than the state poverty rate of 14.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 3.6%. This is 44% lower than the state rate of 6.4%. The median home value is $874,300. Housing costs are 106% higher than the state median of $423,800. The home-value-to-income ratio is 4.7x. 92.4% of occupied housing units are owner-occupied. This homeownership rate is 70% higher than the state average of 54.4%.

Race & Ethnicity

The largest racial or ethnic group in Syosset is White (non-Hispanic), making up 59.1% of the population. Asian residents account for 32.8%. The Black or African American population (1.0%) is well below the state average of 13.4%. The Hispanic or Latino population (4.5%) is well below the state average of 19.8%. The Asian population is significantly higher than the state average (32.8% vs 9.0%).

Education

69.1% of residents aged 25 and older hold a bachelor's degree or higher. This places Syosset in the top 10% of all cities in the state for educational attainment. This is 72% higher than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.1%. Notably, 34.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Syosset, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,289 Census-designated places in New York. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.

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Frequently Asked Questions

What is the population of Syosset, New York?

Syosset, New York has a population of 18,433 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Syosset, NY?

The median household income in Syosset is $187,273, which is 132% higher than the national median of $80,734.

What is the poverty rate in Syosset, NY?

The poverty rate in Syosset is 4.2%. This means approximately 771 residents live below the federal poverty line.

What is the racial makeup of Syosset, New York?

Syosset's population is 59.1% White, 1.0% Black, 4.5% Hispanic/Latino, and 32.8% Asian.

What is the median home value in Syosset, NY?

The median home value in Syosset is $874,300. The home-value-to-income ratio is 4.7x.

How educated is Syosset, New York?

69.1% of adults (25+) in Syosset hold a bachelor's degree or higher, and 34.7% hold a graduate or professional degree.