By Hank Russell
The year 2025 ended with a bang in the Long Island housing market as home prices finished higher.
According to data from the New York State Association of REALTORSⓇ (NYSAR), home prices in Nassau and Suffolk Counties went up on both an annual and quarterly basis. In Nassau County, the median sales price in December went up 2.5% to $810,000 from $790,000 the previous December. Meanwhile, Suffolk County’s median sales price last month was at $680,000 — up 2.5% from December 2024, when it was $650,000.
Both counties exceeded the state’s media sales price, which was $440,000, according to NYSAR. That is up 6.8% from the previous December’s sales price of $412,000.
Sales and listings were mixed. In Nassau, sales fell 4.0% year over year from 866 to 831, but there were 535 new listings in December 2025, a 1.5% improvement over the previous December (527), based on data from NYSAR. Although the number of closings inched up 0.2% in Suffolk last month to 1,205 from 1,203 in December 2024, there were only 690 new listings, which is down 6.0% from the last month in 2024, when there were 734 new listings.
Inventory fell sharply on an annual basis. There were 1,822 homes for sale in Nassau, which was 12.4% lower than the December 2024 figure of 2,079, based on NYSAR data. Supply also declined year over year from 2.5 to 2.2 months. In Suffolk, supply fell 12.1% from 2,887 to 2,537 homes for sale and inventory shrunk from 2.6 to 2.3 months — a decrease of 11.5%.
Statewide, there were 2.6 months supply of inventory, which slipped 3.7% on a yearly basis. In December 2024, supply was at 2.7 months, NYSAR said.
On a quarterly basis, Nassau’s median sales price went up 5.2%, based on NYSAR data. During the last quarter of 2025, the price was $815,000, compared to $775,000 the same quarter in 2024. Sales dipped slightly by 1.0% from 2,525 in Q4 2024 to 2,500 in the last three months of 2025. New listings fell 2.2% from 2,350 to 2,298 and 1,822 homes were available for sale in Q4 2025, down 12.4% from the same quarter the previous year (1,822). Inventory also declined on a quarterly basis from a 2.5- to a 2.2-month supply.
According to NYSAR, Suffolk’s median sales price rose 5.4% from $645,000 in the fourth quarter of 2024 to $680,000 in Q4 2025. There were 3,609 sales last quarter, which is down slightly at 0.2% from the Q4 2024 figure of 3,615. There were also 4.8% fewer new listings, with 3.099 in Q4 2025, compared to 3,256 the same quarter in 2024. Inventory declined quarter over quarter from 2,887 to 2,537 homes for sale — a 12.1% decrease — and supply was at 2.3 months, off 11.5% from Q4 2024 (2.6 months).
Both counties’ sales prices were higher than the state’s, which was $427,000 — up 4.7% from the same quarter in 2024, according to NYSAR. Inventory was higher across the state than on Long Island, with a 2.6-month supply. That is 3.7% lower than in Q4 2024, when supply was at 2.7 months.