Located astride Route 1 just east of Princeton, Plainsboro Township is located in Middlesex County, but is closely joined to neighboring West Windsor in Mercer County. Even though Plainsboro has its own municipal government, it shares schools with West Windsor in the highly rated West Windsor/Plainsboro school district.

Residents find a wide variety of housing in the township, which includes developments such as The Gentry, Walker Gordon Farm, Princeton Collection, Crossings at Grovers MillPrinceton Landing, Hampshire, Aspen, Ravens Crest and many others. There is certainly much to select, from one-bedroom condos along Plainsboro Road to elegant estates down Cranbury Road. The heart of the community is Plainsboro Village Center, a fairly new development of stores, houses and townhouses that combines a town-like feel with the comfort of suburban living.

Plainsboro boasts elegant commercial areas as well, such as Princeton Forrestal Village and properties along Route 1. Although many of them have a Princeton address (such as the RE/MAX Greater Princeton office), those businesses are actually part of the Plainsboro community.

One of the biggest draws to living in Plainsboro is its proximity to the Princeton Junction train station. A local bus route services key locations within the township and allows for an alternate means of getting to the train station. The township has also welcomed its newest jewel, the University Medical Center at Princeton, located along Plainsboro Road near Route 1.

Because of its proximity to Princeton, several neighborhoods in Plainsboro have a Princeton address. When searching for homes in this township, check zip code 08540 as well, which encompasses some parts of South Brunswick, Plainsboro and West Windsor. Plainsboro residents with a Princeton address are still served by the Plainsboro school and municipal systems.