Why Long Island Became the Hottest Seller Market in the US at the End of 2025

Long Island tops the national charts even as the rest of the country shifts to buyers

If you follow the real estate USA news cycle, December’s data was striking: Long Island was the strongest seller’s market in the country at the end of 2025. That finding comes from Redfin’s December report, which showed nearly 11,000 buyers competing for roughly 7,300 seller listings in the area Redfin defines as the Nassau County metro. The result is a 33.4% shortfall of sellers relative to buyers, and this was the third consecutive month Long Island led the ranking.

We read that and reacted the same way most analysts do: impressive, and also a little worrying for buyers. In this article I’ll unpack the numbers, explain where demand is concentrated, and offer practical guidance for buyers and sellers who are weighing moves in and around New York City.

How Redfin measures a seller’s market — and what the numbers mean

Redfin defines a seller’s market when the number of buyers outnumbers sellers by more than 10%. By that yardstick, Long Island’s 33.4% gap is clearly significant. The brokerage estimated almost 11,000 active buyers versus just over 7,300 sellers in December 2025. That is the concrete imbalance creating upward pressure on housing prices and intensifying competition for well-priced, well-located homes.

A few technical points worth knowing:

• Redfin’s buyer and seller counts are estimates based on searches, tours, offer activity and listing supply. They are not raw counts of closed transactions.
• The metric is a snapshot of market balance, not a forecast of future appreciation.
• A “seller’s market” in this context signals pricing power and faster sales timelines, but it does not guarantee bidding wars on every property.

The takeaway for investors and homeowners is straightforward: where inventory remains constrained and demand is strong, sellers can expect better terms and faster sales; buyers must be more strategic and realistic on price.

Why Long Island is bucking the national trend

Nationally, Redfin found that December 2025 was one of the strongest buyer markets on record, with 47% more sellers than buyers across the United States. The Sun Belt, and Austin, Texas in particular, were the strongest buyer markets — Austin had an estimated 128% more sellers than buyers. Long Island’s outlier status demands an explanation.

Several structural and local factors help explain the persistence of demand on Long Island:

• Proximity to Manhattan and job centers. Commuter access remains a major draw for households that value access to New York City while keeping a suburban lifestyle.
• High-quality public and private schools. Education is a primary motivator for many relocating families, and Long Island’s North Shore towns are known for strong school districts.
• Low inventory on targeted segments. The supply of homes matching buyer preferences is unusually thin, especially in certain price bands.

Local agents describe the market as active but more measured than the 2021 frenzy. Maria Babaev, a Long Island North Shore real estate adviser, told The Post that the market is “a lot more thoughtful” than the red-hot activity seen in 2021 even as inventory remains very low. That combination—steady demand, scarce supply, and more deliberate buying behavior—helps explain why Long Island keeps outpacing the national trend.

Where on Long Island demand is strongest

Redfin’s metro definition covers both Nassau and Suffolk counties. Within that broad area, the hottest pockets are the higher-end North Shore villages. Agents and recent sales data point to concentrated activity in communities such as:

• Roslyn and Roslyn Heights
• Old Westbury
• Brookville

These towns are seeing particularly intense competition in the $2 million to $4 million price range. Buyers are drawn by the combination of school quality, suburban lifestyle, and commuting options. The result is upward pressure on pricing in neighborhoods that already command premium values.

This is not a uniform phenomenon across all price points. Lower-price segments and markets farther east in Suffolk County show different dynamics. But where supply of move-in-ready, well-located homes is limited, sellers are enjoying advantage.

What this means for buyers: strategy and risks

If you are a buyer looking at Long Island property, the market is both an opportunity and a challenge. High demand and low inventory push prices up and can force concessions. At the same time, the market is calmer than 2021, so there is room for thoughtful negotiation if you come prepared.

Key implications and tactics for buyers:

• Budget for competition. Expect multiple-offer situations on desirable properties, especially in school districts and North Shore villages. Offer strategy must reflect that reality.
• Get mortgage pre-approval early. Sellers favor buyers with clean financing who can close on schedule. If you can, secure a pre-approval letter and be ready to move fast.
• Consider appraisal and inspection contingencies carefully. Waiving contingencies can win deals but increases risk. We advise weighing the property’s condition, market behavior, and your tolerance for risk before removing safeguards.
• Shop off-market and be flexible on timing. Some buyers succeed by identifying underpriced or off-market listings, or by adjusting move-in windows to fit seller needs.
• Look beyond headline price. Factor in property taxes, insurance, commuting costs and potential assessment increases as values rise.

Risks buyers must acknowledge:

• Affordability pressure. With interest rates still higher than pre-pandemic lows, monthly payments are a constraint for many first-time buyers.
• Higher property tax exposure. As home values rise in a jurisdiction reliant on property taxes, annual tax bills may increase; this can erode affordability even if mortgage rates stabilize.

What this means for sellers: timing, pricing, and tax exposure

Sellers on Long Island are in a favorable position.