Apartments for Rent in Williamstown, NJ

Prices and availability in Williamstown, NJ were last updated on 12 Sep 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 $537 and $4,887.

The price range for a 2-bedroom apartment in Williamstown, NJ is between $1,511 and $5,439.

The price range for a 3-bedroom apartment in Williamstown, NJ is between $1,452 and $1,720.

In Williamstown 18% of the housing is rented out compared to 82% of homes are owned, according to the most recent Census Bureau estimates. 21% of Williamstown's apartments are found in large buildings of 50 units or more, 70% are located in smaller apartment complexes with less than 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.

Rental apartments in Williamstown come in a range of sizes and floorplans. Studio apartments represent 2% of units for rent, ideal for singles, renters on a budget and people who value central locations more than space. Rentals with 1-bedroom floorplans make up 38% of the total apartments in the city, while 2-bedroom floorplans represent around 57% of all rentals in Williamstown. The rest are larger floorplans with 3 bedrooms or more, typically preferred by families, larger households or roommates sharing space.