Plainsboro's housing stock spans several decades and styles. Older neighborhoods feature ranch-style and split-level homes on established lots, while newer sections add Colonial-style single-family houses, some on lots of up to an acre and a half. A substantial share of the housing is attached: one- and two-bedroom condominiums and two- and three-bedroom townhouses serve renters, first-time buyers, and those who prefer lower-maintenance living. This range of housing types, combined with the township's schools and employment base, gives the market broad appeal from young professionals to established families.

Plainsboro's residential areas are spread across a mix of quiet single-family streets and well-kept condominium and townhome communities. Development has generally followed the township's growth as a pharmaceutical and academic suburb, with older ranch and split-level neighborhoods near the center and newer subdivisions farther out. The unincorporated Princeton Meadows area and several large apartment and condo communities add density and rental options close to Route 1. The 630-acre Plainsboro Preserve and a network of community parks keep open space woven through the township's neighborhoods.

Plainsboro offers a polished suburban lifestyle anchored by education and the sciences. The township's proximity to Princeton brings university lectures, cultural events, and dining within minutes, while its own amenities include a well-used public library, community recreation programs, and the Plainsboro Preserve. The population is notably diverse and highly educated, reflecting the area's concentration of pharmaceutical, technology, and academic employers. Community life balances the quiet of leafy residential streets with easy access to the shopping, dining, and transit corridors along Route 1 and in nearby Princeton and West Windsor.

Plainsboro is part of the West Windsor-Plainsboro Regional School District, a highly regarded system shared with neighboring West Windsor Township. The district's schools, including Millstone River School, Community Middle School, and the West Windsor-Plainsboro high schools, serve students from both townships and are a major reason families choose the area. The township's educated, academically oriented community and its proximity to Princeton reinforce a strong emphasis on schools, and a variety of private and parochial options are also available nearby.

Plainsboro is exceptionally well connected for a suburban township. It sits minutes from New Jersey Turnpike Exit 8A and along the Route 1 corridor, while Princeton Junction station on Amtrak's and NJ Transit's Northeast Corridor provides rail service to New York, Trenton, and Philadelphia. NJ Transit's 600 bus and Middlesex County shuttle routes connect local neighborhoods to Princeton and regional transit hubs. The result is a commute of roughly an hour to either New York City or Philadelphia by rail, with Princeton University and the Route 1 employment corridor reachable in minutes.

The 630-acre Plainsboro Preserve is the township's outdoor centerpiece, offering trails, wildlife habitat, and environmental programming in partnership with New Jersey Audubon. Plainsboro Community Park and a network of neighborhood parks provide sports fields, playgrounds, and gathering spaces. The Delaware and Raritan Canal towpath and Princeton's parks and cultural venues are minutes away, while the township's recreation department runs year-round programs for residents of all ages.