Apartments for Rent in Williamstown, NJ

Prices and availability in Williamstown, NJ were last updated on 23 Oct 2026.

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

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

The price range for a 1-bedroom apartment in Williamstown, NJ is between $555 and $4,664.

The price range for a 2-bedroom apartment in Williamstown, NJ is between $1,235 and $5,553.

The price range for a 3-bedroom apartment in Williamstown, NJ is between $1,452 and $1,771.

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 average age of rental buildings in Williamstown is 38 years old, with 39% being newer apartment buildings completed since 2000. The average height of apartment buildings in the city is 2 stories, of which all are garden-style apartment communities, none are mid-sized buildings, and none are high-rises. These characteristics describe large-scale apartment communities of 50 apartments or more.

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.