Active Listings
340
⇩ 12.1% vs 387 last year
Data as of February 2026. Source: Realtor.com.
The Jefferson County, NY real estate market currently shows 340 active listings, with 142 pending sales. Homes are averaging 121 days on the market before going under contract.
Inventory has tightened compared to last year, with 47 fewer active listings — creating more competition among buyers.
Homes are taking longer to sell, averaging 121 days on market compared to 114 days last year.
The median listing price has risen 2.8% year-over-year, from $249,900 to $257,000.
Whether you are buying or selling in Jefferson County, NY, SELL123.com can help you save significantly on commission — typically 2% compared to traditional 5% broker fees. Call (240) SELL-123 for a free consultation.
Population: 118,155 · Density: 175.4/mi² · Median household income: $62,715
Typical home value: $143,552 · Homeownership: 52.8%
Adams: 13605
Adams Center: 13606
Alexandria Bay: 13607
Belleville: 13611
Black River: 13612
Brownville: 13615
Calcium: 13616
Cape Vincent: 13618
Carthage: 13619
Chaumont: 13622
Clayton: 13624
Deferiet: 13628
Based on listing price changes before sale/pending as a proxy for sale-to-list dynamics. Source: Realtor.com.