365 - 377 - 379 Kearny Avenue, Kearny, NJ 07032

According to the United States Census Bureau, the town had a total area of 10.27 square miles (26.61 km2), including 8.84 square miles (22.91 km2) of land and 1.43 square miles (3.70 km2) of water (13.91%)

Unincorporated communities, localities and place names located partially or completely within the town include Arlington, New Jersey, Schuylers Corner and West Arlington.

The town is bordered by East Newark, Harrison, Lyndhurst, North Arlington (both located in Bergen County) and Secaucus. The Passaic River separates the town from Newark and Belleville, both located in Essex County. The Hackensack River separates it from Jersey City.

The town is varied in topography and roughly divided into three parts: the Kearny Uplands, the Kearny Meadows and South Kearny, which is located where the Hackensack and Passaic rivers meet. Main thoroughfares include the eponymous Kearny Avenue (the local segment of Ridge Road / Frank E. Rodgers Boulevard), Bergen Avenue, Midland Avenue, Schuyler Avenue and Passaic Avenue.

A number of small parks running along the Passaic River are collectively called Riverbank Park. The largest, located on the colloquial "Bunnyland Hill", is a gift from Kearny's veterans. It is named after a small zoo named Bunnyland, which was maintained by the local Kiwanis Club, that occupied part of the present Bunnyland Hill in the 20th century. During Kearny's Fourth of July celebrations (which include a fireworks display), Bunnyland Hill is the primary gathering spot for celebrants and observers. The largest park is West Hudson Park, shared with Harrison, which contains a variety of sports fields, recreational areas, and an artificial pond. The second largest recreational zone is the Kearny Playground at Gunnel Oval.