Data as of September 2026. Source: Realtor.com.
The Mercer County, NJ real estate market currently shows 1,357 active listings, with 518 pending sales. Homes are averaging 52 days on the market before going under contract.
Inventory has increased compared to last year, with 172 more homes available — giving buyers more choice.
Homes are taking longer to sell, averaging 52 days on market compared to 45 days last year.
The median listing price has risen 0.5% year-over-year, from $447,450 to $449,900.
Population: 394,904 · Density: 1,626.9/mi² · Median household income: $104,479
Typical home value: $353,398 · Homeownership: 63%
Trenton: 08602, 08603, 08606, 08608, 08610, 08611, 08618, 08619, 08620, 08628, 08666
Mill Hill: 08601, 08604, 08605, 08645, 08646, 08647, 08695
Princeton: 08540, 08541, 08542, 08543, 08544
Hightstown: 08520
Hopewell: 08525
Lawrence Township: 08648
Pennington: 08534
Princeton Junction: 08550
Robbinsville: 08691
Titusville: 08560
Central West: 08607
South Trenton: 08625
Braeburn Heights: 08638
Based on listing price changes before sale/pending as a proxy for sale-to-list dynamics. Source: Realtor.com.