Iselin ( or , IZZ-EH-lin or IZZ-lin) is an unincorporated community and census-designated place (CDP) located within Woodbridge Township, in Middlesex County, New Jersey, United States. As of the 2010 United States Census, the CDP's population was 18,695.
Previously known as Perrytown and Unionville, Iselin received its current name after New York investment banker and philanthropist Adrian Georg Iselin, who established a finishing school in the 1870s for girls from wealthy New York families there. Iselin additionally subsidized the erection of a new train station which was replaced by a newer station to the south known as Metropark. The largest bordering town of Iselin is Edison.
According to the United States Census Bureau, the CDP had a total area of 3.190 square miles (8.263 km2), including 3.189 square miles (8.261 km2) of land and 0.001 square miles (0.003 km2) of water (0.03%).
Iselin public school students attend the schools of the Woodbridge Township School District. Elementary Schools #18, #24 and #26 are located in Iselin as well as Iselin Middle School (nicknamed the Panthers) and John F. Kennedy Memorial High School (nicknamed the Mustangs).
Iselin's downtown is centered on Oak Tree Road, bound by the Garden State Parkway to the West, and Route 27 (Lincoln Highway) to the East. Once home to a wide array of shops, eateries, services, and complemented by a single-screen 1920s movie palace, the area was in obvious decline in the 1980s. An influx of Asian Indian immigration beginning in the early 1990s led to the area's revitalization. Formerly vacant stores were tenanted, and additional retail spaces built as the area became known for its high quality Indian food, sweets, clothing (particularly saris), jewelry, music, and other goods.