Old Westbury is home to 4,241 people in New York. Households here earn about 191% more than in New York as a whole. The median household earns $250,000+, about 204% above the national median. 78% of adults hold a bachelor's degree, against 36% nationally. Home values have more than doubled since 2000, reaching $2,000,000+. Renters pay $3,500+ a month at the median.
At a glance
Wealthier
median household income $250,000+, above the US median
US median: $82,259
Younger
median age 29.5
US median: 38.9
More educated
78% hold a bachelor's degree
US average: 36%
Top-priced homes
median home value $2,000,000+, the Census reporting cap
US median home: $376,019
Unique to this place
What stands out about Old Westbury
What changed most since 1990
White share69.6% → 73.4%(+3.8 pts)US over the same years: −17.8 pts
Median age31.8 → 29.5(−2.3 years)US over the same years: +6.0 years
Black share15.5% → 4.7%(−10.8 pts)US over the same years: +0.2 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)43.3%(26)
US avg: 26.4%
Gulf War (1990s)0%(0)
US avg: 24.3%
Vietnam era28.3%(17)
US avg: 33.1%
Korean War28.3%(17)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 60 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Old Westbury, decade by decade
Old Westbury population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
3,897
$330,053
$1,200,037+
53.4%
60.1
2000
4,228
$283,721
$1,821,657+
63.9%
66.7
2010
4,671
$292,210
$1,438,572+
75.4%
69.8
2020
4,289
$271,800
$2,280,209
77.1%
81.0
2024
4,241
$250,000+
$2,000,000+
78.0%
54.7
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
Old Westbury, New York has about 4,241 residents according to the 2024 American Community Survey.
What is the median household income in Old Westbury, New York?
The typical household in Old Westbury, New York earns $250,000 or more a year. The Census Bureau does not publish medians above that cap, so the exact figure is not known.
Is Old Westbury, New York expensive?
In Old Westbury, New York, the median home is worth $2,000,000 or more, and the typical rent is $3,500 or more a month.
How educated are people in Old Westbury, New York?
About 78.0% of adults age 25 and over in Old Westbury, New York hold a bachelor's degree or higher.
What is the poverty rate in Old Westbury, New York?
About 3.2% of people in Old Westbury, New York live below the federal poverty line.
Has Old Westbury, New York grown since 1990?
Yes, Old Westbury, New York has grown since 1990. The population has added about 344 residents, a change of about 9 percent over that period.
