Selden, New York Demographics & Population 2026
During the 2020–2024 ACS period, Selden, New York had a total population of 21,604, the 75th largest community in New York, with a median household income of $108,952, which is 27% higher than the state average. The poverty rate is 6.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Selden Quick Facts
How Selden Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 21,707 | 21,604 | -0.5% |
| Median household income | $111,339 | $108,952 | -2.1% |
| Median home value | $435,700 | $462,000 | +6.0% |
How Selden Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 65 | National average: 61
Education
Educational Attainment (Adults 25+)
Selden Rankings in New York
Explore New York Rankings
Other Cities in Suffolk County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| West Babylon | 43,570 | $129,519 | 5.9% | $531,900 |
| Coram | 39,539 | $105,220 | 7.5% | $452,100 |
| Central Islip | 38,373 | $113,707 | 9.2% | $436,400 |
| Commack | 36,558 | $169,792 | 4.2% | $678,200 |
| Huntington Station | 32,601 | $135,477 | 7.2% | $578,000 |
| Centereach | 31,839 | $132,240 | 5.3% | $514,800 |
| Bay Shore | 31,683 | $105,618 | 10.2% | $492,200 |
| Shirley | 28,375 | $112,788 | 6.5% | $424,900 |
| Deer Park | 27,990 | $137,105 | 3.4% | $543,500 |
| Lindenhurst | 27,142 | $130,128 | 5.7% | $521,500 |
Cities Similar to Selden
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| East Patchogue | 21,673 | $108,397 | $478,700 | 33.8% | 5.9% |
| Niskayuna | 21,227 | $134,052 | $357,900 | 67.4% | 4.0% |
| Nanuet | 19,799 | $117,167 | $532,500 | 46.6% | 9.3% |
| Mamaroneck | 19,826 | $120,000 | $717,200 | 56.6% | 10.7% |
| North Amityville | 21,138 | $136,654 | $466,500 | 28.2% | 6.0% |
Population Overview
Selden is a small city located in New York, within Suffolk County. The total population is 21,604. It ranks as the 75th most populous out of 1,289 Census-designated places in New York.
Age Demographics
The median age in Selden is 39.1 years. This is 2% lower than the state median of 39.8 years.
Economy, Income & Housing
The median household income in Selden is $108,952. This is 27% higher than the state median of $85,974. It is also 35% higher than the national median of $80,734. The poverty rate stands at 6.7%. This is 52% lower than the state poverty rate of 14.0%. The unemployment rate is 4.0%. This is 37% lower than the state rate of 6.4%. The median home value is $462,000. Housing costs are 9% higher than the state median of $423,800. The home-value-to-income ratio is 4.2x. 84.6% of occupied housing units are owner-occupied. This homeownership rate is 56% higher than the state average of 54.4%.
Race & Ethnicity
The largest racial or ethnic group in Selden is White (non-Hispanic), making up 59.4% of the population. Hispanic or Latino residents account for 25.6%. The Black or African American population (3.1%) is well below the state average of 13.4%.
Education
27.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 31% lower 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 91.7%.
Data Sources & Methodology
All demographic data for Selden, 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 Selden, New York?
Selden, New York has a population of 21,604 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Selden, NY?
The median household income in Selden is $108,952, which is 35% higher than the national median of $80,734.
What is the poverty rate in Selden, NY?
The poverty rate in Selden is 6.7%. This means approximately 1,455 residents live below the federal poverty line.
What is the racial makeup of Selden, New York?
Selden's population is 59.4% White, 3.1% Black, 25.6% Hispanic/Latino, and 6.9% Asian.
What is the median home value in Selden, NY?
The median home value in Selden is $462,000. The home-value-to-income ratio is 4.2x.
How educated is Selden, New York?
27.8% of adults (25+) in Selden hold a bachelor's degree or higher, and 9.7% hold a graduate or professional degree.