The Borough of Sayreville is located in east-central NJ in Middlesex County, on the Raritan River, near Raritan Bay. Sayreville has an area of 16.3 square miles with a population of 40,337 and was settled about 1775 and incorporated in 1920.

Sayreville enjoys close proximity to several major roadways - the Garden State Parkway, New Jersey Turnpike, I-287, and Routes 1, 9 and 35.

Until the 1870s, Sayreville was an important river port. Originally known as Roundabout (for river bends here) and then as Wood's Landing, it was renamed in the 1870s for James R. Sayre, Jr., a co-owner of a brick company that once flourished here. Extensive clay deposits supported the brick industry from the early 1800s until 1970.

Although the borough remains well-known as an industrial town, the addition of many technology companies and a growing residential population has changed the landscape of this central New Jersey town. Currently, manufactured products include paints, chemicals, and processed food.