Nassau County is a county of 1,389,591 people in New York. Households here earn about 70% more than in New York as a whole. Home values have roughly tripled since 2000, reaching $684,700. Few US counties rank higher on income. Median household income runs $146,202, well clear of the $82,259 US median. Owners hold 82% of the housing stock.
At a glance
Wealthier
median household income $146,202, above the US median
US median: $82,259
Older
median age 42.0
US median: 38.9
More educated
50% hold a bachelor's degree
US average: 36%
Less affordable
home values up 56%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Nassau County
What changed most since 1990
White share82.9% → 54.3%(−28.7 pts)US over the same years: −17.8 pts
Asian share3.0% → 12.2%(+9.2 pts)US over the same years: +3.1 pts
Median home value (2024 dollars)$500,414 → $684,700(+37%)US over the same years: +67%
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)18%(5,812)
US avg: 26.4%
Gulf War (1990s)13.3%(4,294)
US avg: 24.3%
Vietnam era38.2%(12,322)
US avg: 33.1%
Korean War9.3%(3,003)
US avg: 4.5%
World War II2.6%(848)
US avg: 1%
Share of the 32,220 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
Nassau County, decade by decade
Nassau County 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
1,287,348
$130,283
$500,414
30.0%
37.7
2000
1,334,544
$131,214
$437,562
35.4%
53.9
2010
1,339,532
$134,669
$701,879
40.9%
66.6
2020
1,395,774
$145,488
$635,593
46.7%
78.6
2024
1,389,591
$146,202
$684,700
49.7%
80.3
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.