Plainsboro is a township in Middlesex County, New Jersey, home to about 24,167 people across 12 square miles. Its ZIP code is 08536, and parts of 08512 and 08540 are in Plainsboro too.
Homes sold for a median of $404 per square foot in the three months ending August 2026, a balanced market.
All in Plainsboro
Mostly South Brunswick; part is in Plainsboro
Mostly Princeton; part is in Plainsboro
Each card is that ZIP code’s whole market, including any part outside Plainsboro. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Plainsboro’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Newark Liberty International Airport (EWR)32 miles away |
|---|---|
| Closer regional airport | Trenton Mercer Airport (TTN)13 miles away |
| Nearest city of 250,000+ | Newark, NJ34 miles away |
| Nearest city of 1 million+ | Philadelphia, PA37 miles away |
Straight-line distances from the center of Plainsboro; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Plainsboro had 24,084 residents in the 2020 census, up 19% since 2000.
It’s the 111th largest of 565 towns in New Jersey by population.
Middlesex County grew from 79,762 residents in 1900 to 863,162 in 2020.
Middlesex County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 21°F. About 47.6 inches of rain and melted snow fall in a typical year, with about 24 inches of snow.
Source: NOAA 1991–2020 climate normals, Hightstown 2 W, NJ weather station (5 miles away).
434,143 jobs at 22,314 businesses in Middlesex County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
309 doctors and other health care providers list an office in Plainsboro.
Nearest hospitals
Providers with an office here
| Primary care doctors | 65 |
|---|---|
| Specialist doctors | 92 |
| Dentists | 21 |
| Nurse practitioners and physician assistants | 65 |
| Mental health providers | 21 |
| Physical and occupational therapists | 36 |
| Optometrists | 6 |
| Chiropractors | 3 |
| Pharmacies | 6 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (7 nearby)
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues
Counts are within about 2.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1919.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by West Windsor-Plainsboro Regional School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Town Center Elementary School at PlainsboroPlainsboro | Pre-K–3 | 439 | Public | 0.4 mi |
| J.V.B. Wicoff Elementary SchoolPlainsboro | K–3 | 334 | Public | 1.0 mi |
| Millstone River SchoolPlainsboro | 3–5 | 772 | Public | 1.3 mi |
| Community Middle SchoolPlainsboro | 6–8 | 1,029 | Public | 1.4 mi |
| West Windsor-Plainsboro High School NorthPlainsboro | 9–12 | 1,510 | Public | 1.6 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Princeton, Franklin Township (Somerset County), West Windsor, Lawrence, South Brunswick, Cranbury, Montgomery, East Windsor and Hopewell Township (Mercer County).
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.