Active Listings
458
⇧ 28.7% vs 356 last year
Data as of March 2026. Source: Realtor.com.
The Jefferson County, NY real estate market currently shows 458 active listings, with 194 pending sales. Homes are averaging 110 days on the market before going under contract.
Inventory has increased compared to last year, with 102 more homes available — giving buyers more choice.
The median listing price has risen 4.7% year-over-year, from $249,900 to $261,563.
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.