What are the richest towns?

An aerial view of a quiet Long Island residential neighborhood showcases the tree-lined streets, well-kept homes, and suburban communities that define much of Nassau and Suffolk counties. From historic villages to modern hamlets, Long Island's towns offer a diverse mix of neighborhoods, local businesses, parks, and family-friendly communities. File photo: Francesco Joesph, licensed. — An aerial view of a quiet Long Island residential neighborhood showcases the tree-lined streets, well-kept homes, and suburban communities that define much of Nassau and Suffolk counties. From historic villages to modern hamlets, Long Island’s towns offer a diverse mix of neighborhoods, local businesses, parks, and family-friendly communities. File photo: Francesco Joesph, licensed.

Long Island is home to many of New York’s most affluent communities, particularly along the Gold Coast, the North Shore, and portions of the Hamptons. These communities are known for luxury homes, waterfront estates, highly rated schools, and some of the highest household incomes in the region.

In Short

Communities such as Manhasset, Garden City, Old Westbury, Brookville, East Hampton, Southampton, Sagaponack, and Lloyd Harbor are widely recognized among Long Island’s wealthiest communities. Wealth can be measured in different ways, including household income, home values, and overall net worth.

What Are the Richest Towns on Long Island?

Long Island has long been associated with elegant estates, waterfront mansions, and affluent suburban communities. Many of the island’s wealthiest neighborhoods developed during the late nineteenth and early twentieth centuries, particularly along the North Shore, where industrialists and business leaders built grand estates that became known collectively as the Gold Coast.

Today, communities such as Old Westbury, Brookville, Manhasset, and Lloyd Harbor are known for expansive homes, private properties, and desirable residential settings. On the East End, East Hampton, Southampton, and Sagaponack are internationally recognized for luxury real estate, oceanfront estates, and seasonal residents.

While these communities often rank highly for income and property values, affordability, taxes, school districts, and housing availability can vary significantly from one location to another. Prospective homebuyers and residents should consider a variety of factors when comparing communities.

Whether you’re interested in Long Island’s historic estates or its modern luxury neighborhoods, these communities represent some of the island’s most prestigious places to live.

Quick Facts

Looking For…	General Information
Historic Luxury Communities	Gold Coast communities on the North Shore.
Large Estates	Old Westbury, Brookville, and Lloyd Harbor.
Luxury Waterfront Living	East Hampton, Southampton, and Sagaponack.
Factors to Compare	Household income, home values, property taxes, school districts, and overall cost of living.

From the historic estates of the Gold Coast to the oceanfront communities of the Hamptons, Long Island is home to some of the most affluent neighborhoods in the United States. Whether you’re researching luxury real estate, exploring the island’s history, or planning a visit, these communities offer a glimpse into one of New York’s most distinctive residential landscapes.