Apartments for Rent in Williamstown, NJ

Prices and availability in Williamstown, NJ were last updated on 3 Jun 2026.

The best apartments in Williamstown, NJ are: Merion at Cross Keys, The Willows at Justin Commons and Hi View Apartments.

The average rent in Williamstown, NJ is $1,750.

The price range for a 1-bedroom apartment in Williamstown, NJ is between $985 and $5,012.

The price range for a 2-bedroom apartment in Williamstown, NJ is between $660 and $5,634.

The price range for a 3-bedroom apartment in Williamstown, NJ is between $1,329 and $1,720.

In Williamstown, 18% of the residents are renting compared to 82% owning a home, according to data from the U.S. Census Bureau. Large-scale apartment buildings with more than 50 units represent 21% of Williamstown's rentals, 70% are small-scale complexes with under 50 units, and 9% are single-family rentals.

The age and size of multifamily buildings are among the most visible characteristics of the rental market in a city. In this case, the apartment buildings in Williamstown are about 38 years old, on average. Of these, 39% have been built since 2000, representing the newer options on the market and typically offering more amenities. Rental buildings in the city have an average height of 2 stories. About all of the rental communities here are low-rise, garden-style communities, none are mid-rises, and none are high-rise buildings. These are true especially for large-scale multifamily buildings with over 50 apartments.

Studio apartments in Williamstown are around 2% of rentals, while 1-bedroom floor plans represent 38% of the total stock. For those in search of larger rentals, 2-bedroom floorplans make up 57% of all rentals. More generous apartments with 3 bedrooms or more are also available in this city for those in search of more space.