Census-designated place · New York
Greenlawn, New York
Greenlawn, census-designated place, in Suffolk County, New York. Greenlawn had 15,210 people in the ACS 2020-2024 5-year estimates (±1,704). GEOID 3630543.
Residents, 2020-2024
15,210
±1,704 (90% margin)
2020 Census count: 13,661
Median household income
$164,427
±$18,984 (90% margin)
New York: $85,974
Median home value
$630,800
±$26,000 (90% margin)
New York: $423,800
Median gross rent
not published
New York: $1,621
Where is Greenlawn and what county is it in?
Greenlawn is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Suffolk County, New York. It covers 3.8 square miles of land, 3,571 residents per square mile in 2020.
Greenlawn is in the New York-Newark-Jersey City, NY-NJ metropolitan statistical area, which takes in 22 counties (Census Bureau delineation, July 2023).
Greenlawn lies entirely within the Town of Huntington, a town with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Greenlawn, and is it growing?
The 2020-2024 American Community Survey puts Greenlawn's population at 15,210 (±1,704). The 2020 Census counted 13,661 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; Greenlawn is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Greenlawn | Suffolk County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 15,210 ±1,704 | 1,530,146 | no clear change |
| Households | 4,678 ±299 | 512,565 | no clear change |
| Average household size | 3.20 ±0.29 | 2.93 | no clear change |
| Housing units | 4,713 ±302 | 580,772 | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Greenlawn?
The median resident of Greenlawn is 37.8 years old; 25.8% are under 18 and 16.5% are 65 or older. The largest group is non-Hispanic white residents at 53.1%, then Hispanic or Latino residents (of any race) at 25.0%. 14.7% of residents were born outside the United States.
| Measure | Greenlawn | Suffolk County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 37.8 ±3.7 | 41.7 | −5.1 |
| Under 18 years | 25.8% ±3.7 pts | 20.8% | – |
| 65 years and over | 16.5% ±2.5 pts | 17.9% | – |
| Male | 47.1% ±2.1 pts | 49.6% | – |
| Hispanic or Latino (any race) | 25.0% ±8.4 pts | 22.8% | +12.4 pts |
| White alone, not Hispanic | 53.1% ±6.2 pts | 62.0% | −15.4 pts |
| Black or African American alone, not Hispanic | 13.8% ±3.4 pts | 6.9% | +4.0 pts |
| Asian alone, not Hispanic | 4.2% ±1.6 pts | 4.4% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.3 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.3% ±1.5 pts | 3.0% | – |
| Some other race alone, not Hispanic | 0.5% ±0.4 pts | 0.7% | – |
| Born outside the United States | 14.7% ±2.9 pts | 16.8% | no clear change |
| Speak a language other than English at home (age 5+) | 26.9% ±7.0 pts | 24.8% | – |
| Civilian veterans (age 18+) | 2.5% ±0.8 pts | 4.0% | – |
| With a disability | 9.5% ±2.2 pts | 10.5% | – |
| No health insurance coverage | 1.6% ±1.0 pts | 4.7% | −3.1 pts |
| High school graduate or higher (age 25+) | 94.2% ±1.8 pts | 90.4% | – |
| Bachelor's degree or higher (age 25+) | 45.1% ±4.6 pts | 40.2% | no clear change |
| Graduate or professional degree (age 25+) | 22.7% ±3.1 pts | 18.6% | – |
| Lived in the same house a year earlier | 96.0% ±1.5 pts | 92.8% | – |
| Moved from another state in the past year | 1.2% ±0.8 pts | 0.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Greenlawn earn?
Half of Greenlawn's 4,678 households earn less than $164,427 a year (±$18,984), against $130,686 in Suffolk County and $85,974 in New York. In 2015-2019 the median was $138,248 in 2024 dollars, so it rose by $26,179 after inflation. 6.3% of residents live below the poverty line.
| Measure | Greenlawn | Suffolk County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $164,427 ±$18,984 | $130,686 | +$26,179 |
| Mean household income | $184,945 ±$14,305 | $166,220 | – |
| Per capita income | $59,960 ±$4,818 | $57,164 | no clear change |
| People below the poverty line | 6.3% ±2.3 pts | 6.4% | no clear change |
| Children under 18 below the poverty line | 5.0% ±3.7 pts | 7.1% | – |
| Households receiving SNAP | 11.5% ±3.4 pts | 7.2% | – |
| Households with a computer | 95.1% ±2.4 pts | 96.5% | – |
| Households with a broadband subscription | 90.7% ±4.5 pts | 93.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Greenlawn?
Owners occupy 83.0% of Greenlawn's occupied homes and renters 17.0%. The median owner-occupied home is valued at $630,800 by its owner (±$26,000).
| Measure | Greenlawn | Suffolk County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $630,800 ±$26,000 | $578,400 | no clear change |
| Renters paying 35% or more of income on rent | 50.9% ±13.8 pts | 49.0% | no clear change |
| Median monthly owner costs, with a mortgage | $3,752 ±$185 | $3,320 | – |
| Owner-occupied homes | 83.0% ±3.5 pts | 82.2% | no clear change |
| Renter-occupied homes | 17.0% ±3.5 pts | 17.8% | – |
| Housing units | 4,713 ±302 | 580,772 | no clear change |
| Homeowner vacancy rate | 0.5% ±0.8 pts | 0.6% | – |
| Rental vacancy rate | 0.0% ±5.2 pts | 4.1% | – |
| Single-family detached homes | 85.3% ±4.6 pts | 79.7% | – |
| Mobile homes | 0.0% ±0.9 pts | 1.3% | – |
| Built 2020 or later | 0.0% ±0.9 pts | 0.7% | – |
| Built 2010 to 2019 | 1.8% ±0.9 pts | 3.7% | – |
| Built 1939 or earlier | 8.8% ±3.5 pts | 9.1% | – |
| Households with no vehicle | 6.0% ±2.7 pts | 5.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Greenlawn work and get to work?
60.6% of Greenlawn's workers drive alone and 16.2% work from home. The average trip to work takes 35.5 minutes. The unemployment rate in 2020-2024 averaged 2.1%.
| Measure | Greenlawn | Suffolk County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 67.9% ±3.6 pts | 65.5% | – |
| Unemployment rate | 2.1% ±0.9 pts | 4.7% | no clear change |
| Drove alone to work | 60.6% ±4.7 pts | 72.1% | – |
| Carpooled | 12.2% ±3.1 pts | 7.5% | – |
| Public transportation | 9.4% ±4.1 pts | 4.8% | – |
| Walked | 0.6% ±0.6 pts | 1.4% | – |
| Worked from home | 16.2% ±3.5 pts | 12.0% | +12.0 pts |
| Mean travel time to work | 35.5 min ±2.5 | 31.1 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Greenlawn?
4 census tracts lie mostly in Greenlawn, and 1 more reaches into it (2020 census blocks). Their median household incomes run from $131,726 (Tract 1115.03) to $191,204 (Tract 1115.07).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 1115.03Suffolk County | 5,083 | $131,726 |
| Tract 1115.08Suffolk County | 3,881 | $159,196 |
| Tract 1115.07Suffolk County | 3,451 | $191,204 |
| Tract 1105.02Suffolk County | 2,809 | $182,283 |
| Tract 1115.04Suffolk County | 2,092 | $180,139 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Greenlawn) · Census block assignment files
How does Greenlawn compare with other places in New York?
Greenlawn ranks 120th of 1,623 places in New York with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 225th | 1,657 |
| Residents per square mile | 221st | 1,657 |
| Median household income | 120th | 1,623 |
| Per capita income | 326th | 1,653 |
| Median home value | 239th | 1,637 |
| Poverty rate | 1,021st | 1,331 |
| Bachelor's degree or higher | 447th | 1,640 |
| Median age | 1,373rd | 1,654 |
| Owner-occupied share | 617th | 1,639 |
| Work from home | 389th | 1,350 |
| Travel time to work | 210th | 1,652 |
Greenlawn's figures with every place in New York (CSV)
Every place in New York, sortable · Compare Greenlawn with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Greenlawn?
10 of the 56 figures for Greenlawn on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Greenlawn are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.