Selden, New York Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Selden, NY Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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A
Health Above average
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B
Income Around average
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C
Education Below average
Source: Map AI Methodology
Population
| Metric | Selden | New York Avg | U.S. Average |
|---|---|---|---|
| Population | 21,223 | 19,748,855 | 337,468,954 |
| Population density (per sq mi) | 4665.5 | 362.0 | 86.4 |
| Population growth (%/yr) | 0.08% | 0.05% | 0.59% |
| Median age | 37.0 | 38.7 | 37.3 |
| Households | 6,830 | 7,694,043 | 130,235,071 |
Population in Selden declined by 4.6% from 2009 to 2024, reaching 21,223 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Selden is Gen Z, aged 13–28, at 22.5% of residents. That is 2.0 points above New York as a whole.
- Gen Z 13–28 4,774 22.5% +2.0 pts
- Millennials 29–44 4,651 21.9% -0.3 pts
- Gen X 45–60 4,361 20.5% -0.2 pts
- Boomers 61–79 3,290 15.5% -1.9 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below New York, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.9% of the people living in Selden and men 49.1%.
- Women 50.9% New York 51.3%
- Men 49.1% New York 48.7%
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Economy
Selden has a the economy index of B, which means it is quite prosperous.
| Metric | Selden | New York Avg | U.S. Average |
|---|---|---|---|
| Median household income | $110,316 | $86,556 | $80,455 |
| Income growth (%/yr) | 3.45% | 4.51% | 4.80% |
| Unemployment rate | 4.1% | 6.4% | 5.2% |
The median household income in Selden is about 27% higher than in New York.
Housing
| Metric | Selden | New York Avg | U.S. Average |
|---|---|---|---|
| Median home price | $534,894 | $471,885 | $248,835 |
| Median rent | $2,315 | $1,621 | $1,407 |
| Homeownership rate | 84.6% | 54.3% | 65.2% |
The median home price in Selden is about 19.3 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,315 per month for that long.
Commute Time & Mobility
Commuters in Selden spend about 48 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 200 hours, about 8.3 full days, spent commuting.
| Metric | Selden | New York Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 24.0 | 28.7 | 22.4 |
| Round-trip commute (min) | 48.0 | 57.4 | 44.8 |
| Yearly time spent (hours) | 200 | 239 | 187 |
| Estimated yearly cost | $6,195 | $7,414 | $5,790 |
| Work from home | 8.9% | 15.0% | 15.0% |
| Highway traffic (vehicles/day) | 15,596 | 9,257 | 8,813 |
| Local road traffic (vehicles/day) | 4,701 | 1,586 | 1,355 |
The average commute time in Selden is 24 minutes, shorter than the 29 minutes in New York.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Selden has a education index of C, which means it is somewhat educated.
| Metric | Selden | New York Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 27.4% | 36.5% | 31.6% |
| Average household size | 3.09 | 2.49 | 2.53 |
Health
Selden has a health index of A, which means it is very healthy.
| Metric | Selden | New York Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.3 | 80.3 | 78.3 |
| Self-rated poor health | 10.3% | 13.2% | 16.3% |
| Smokers | 15.4% | 17.4% | 19.0% |
Selden, NY Compared With Nearby Cities
How Selden, NY compares with the 2 cities closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Selden, NY | 21,223 | $110,316 #2/3 | $534,894 #2/3 | 24.0 min #1/3 |
| Centereach, NY | 33,381 | $132,971 | $625,754 | 25.6 min |
| Coram, NY | 39,542 | $103,827 | $484,043 | 30.3 min |
Frequently Asked Questions
Common questions about Selden, New York.
How many people live in Selden, New York?
About 21,223 people live in Selden, New York, in 6,830 households of 3.1 people on average. The median age is 37.0, close to the U.S. median of 37.3.
Is Selden, New York urban or rural?
Averaged over its land area, Selden, New York has 4,665 people per square mile, a density typical of a city. That is about 54 times the U.S. average of 86.
Is Selden, New York an affordable place to live?
The median home costs 4.8 times the median household income ($534,894 against $110,316), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,315 a month takes about 25% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is unemployment high in Selden, New York?
Unemployment in Selden, New York is only 4.1%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
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