There is no reliable, complete ranking of Long Island’s richest neighborhoods in the available data. “Richest” can mean household income, home values, or total wealth, and those measures do not produce the same list. The communities often described as affluent are useful starting points, but the available source does not provide comparable figures to rank them.
Why there is no defensible ranked list
For this comparison, Long Island means Nassau and Suffolk counties, the definition used by the Federal Reserve Bank of New York. Its regional profile reports a 2024 population of 2,928,347. The Fed’s 2023 regional table gives Long Island a median household income of $131,000 and a median home price of $600,000. Those figures describe the region as a whole; they do not rank individual communities. New York Fed: Long Island regional profile
A local guide identifies affluent communities, but does not order them or supply a common set of place-level statistics. Census county figures likewise cannot establish which neighborhood is richest. Without comparable data for the same kind of geography and reference period, assigning places numbered positions would imply precision the evidence does not support.
What “richest” can mean
| Measure | What it tells you | What it does not establish |
|---|---|---|
| Median household income | Typical annual household income in a defined place and period. | Residents’ total assets, debts, or net worth. |
| Median owner-occupied home value | The midpoint value of owner-occupied homes in a defined place and period. | Household income or overall resident wealth; home values also reflect the housing stock and market. |
| Net worth | Assets minus liabilities, if measured consistently. | A neighborhood comparison cannot be inferred from income or home values alone. |
Income and home value answer different questions. Either can support a ranking if the same measure, geography type, and data release are used for every place. Neither is a complete net-worth ranking.
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The following places are examples described as affluent, not positions in a statistical ranking. They include villages, towns, and hamlets; those labels are not interchangeable with Census geographies.
- Old Westbury and Brookville (Nassau County): associated with historic Gold Coast estates and large properties.
- Sands Point and Manhasset (Nassau County): Sands Point is associated with waterfront mansions; Manhasset with high household incomes.
- Garden City (Nassau County): a planned community included among affluent examples.
- Lloyd Harbor (Suffolk County): described in connection with wooded waterfront estates.
- East Hampton, Southampton, Sagaponack, and Quogue (Suffolk County): Hamptons communities associated with luxury or oceanfront properties and beachfront or bayfront settings.
These descriptions identify places worth examining, but do not show that any one leads on income, home value, or net worth.
County figures provide context, not neighborhood rankings
U.S. Census Bureau QuickFacts reports Nassau County median household income of $146,202 in 2024 dollars and median owner-occupied housing value of $684,700 for 2020–2024. Both are county-level measures, not figures for the communities above. U.S. Census Bureau QuickFacts: Nassau County, New York
The county figures should not be compared directly with the Fed’s regional medians as if they were measurements from the same table and period: the Fed’s figures are regional context from its 2023 table, while QuickFacts gives Nassau estimates for 2020–2024. Neither source provides the missing comparable neighborhood-level ranking.
How to make a fair comparison
- Choose one outcome. Use median household income to compare household resources, or median owner-occupied home value to compare housing values. Do not combine them into an undefined “wealth” score.
- Define the geography precisely. Decide whether the comparison is among villages, towns, hamlets, or Census geographies. A neighborhood name may not match a Census boundary.
- Use one release and period. Pull the same measure from the same data release for every place. The Census ACS Data Profiles include economic and housing subjects for multiple geographic levels; confirm that each place is available at a comparable level. Census ACS Data Profiles
- Check uncertainty before ordering close results. Small-area estimates can be noisy. A 2024 ACS map shows some Nassau block groups at $250,000 or more in income, but the retrieved map does not identify those groups by named neighborhood and warns about small-area uncertainty. Those figures cannot be assigned to the communities listed above without verifying the geographic boundaries. 2024 ACS income map
- Label the result narrowly. A resulting list should say whether it ranks income or home values, identify its geography and data period, and avoid calling the outcome a ranking of residents’ total wealth.
What can be concluded today
Old Westbury, Brookville, Sands Point, Manhasset, Lloyd Harbor, East Hampton, Southampton, Sagaponack, Garden City, and Quogue are cited as affluent Long Island communities. The available figures establish regional and county context, not an ordinal ranking among these places. A numbered list would require a consistent place-level dataset that is not established here.
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