West Windsor is a township in Mercer County, New Jersey, home to about 30,479 people across 26 square miles. Its ZIP code is 08550, and parts of 08540 are in West Windsor too.
Homes sold for a median of $398 per square foot in the three months ending August 2026, a seller’s market.
All in West Windsor
Mostly Princeton; part is in West Windsor
Each card is that ZIP code’s whole market, including any part outside West Windsor. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up West Windsor’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)37 miles away |
|---|---|
| Closer regional airport | Trenton Mercer Airport (TTN)9 miles away |
| Nearest city of 250,000+ | Philadelphia, PA32 miles away |
Straight-line distances from the center of West Windsor; 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.
West Windsor had 29,518 residents in the 2020 census, up 35% since 2000.
It’s the 79th largest of 565 towns in New Jersey by population.
Mercer County grew from 95,365 residents in 1900 to 387,340 in 2020.
Mercer 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).
208,192 jobs at 9,683 businesses in Mercer County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
167 doctors and other health care providers list an office in West Windsor.
Nearest hospitals
Providers with an office here
| Primary care doctors | 19 |
|---|---|
| Specialist doctors | 16 |
| Dentists | 22 |
| Nurse practitioners and physician assistants | 10 |
| Mental health providers | 83 |
| Physical and occupational therapists | 9 |
| Optometrists | 2 |
| Chiropractors | 6 |
| Pharmacies | 9 |
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 (14 nearby)
Grocery stores (7 nearby)
Pharmacies (1 nearby)
Libraries (2 nearby)
Museums (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 3.5 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 1798.
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 |
|---|---|---|---|---|
| Maurice Hawk Elementary SchoolWest Windsor | Pre-K–3 | 723 | Public | 1.5 mi |
| Dutch Neck Elementary SchoolWest Windsor | K–3 | 557 | Public | 2.2 mi |
| Village Elementary SchoolWest Windsor | 4–5 | 657 | Public | 2.9 mi |
| Thomas R Grover Middle SchoolWest Windsor | 6–8 | 1,183 | Public | 3.1 mi |
| West Windsor-Plainsboro High School SouthWest Windsor | 9–12 | 1,627 | Public | 1.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Windsor Montessori SchoolWest Windsor | Pre-K–K | 12 | Nonsectarian | 1.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Princeton, Franklin Township (Somerset County), Lawrence, Plainsboro, South Brunswick, Montgomery 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.