What is the population of Plainsboro?

The population of Plainsboro, NJ is 22,709.

Where is Plainsboro located?

Plainsboro, NJ is located at latitude 40.3334400 and longitude -74.6004300. It is in United States.

What is the area of Plainsboro?

The area of Plainsboro, NJ is 31.614 km².

What is the elevation of Plainsboro?

Plainsboro, NJ has an elevation of 21 meters (69 feet) above sea level.

What time zone is Plainsboro in?

Plainsboro, NJ is in the America/New_York time zone.

What state is Plainsboro in?

Plainsboro is in the state of New Jersey, United States.

What county is Plainsboro, NJ in?

Plainsboro is in Middlesex County, New Jersey.

How has the population of Plainsboro changed?

The population of Plainsboro, NJ has decreased from 22,999 (2010) to 22,709 (2020), a change of -1.3%.

Plainsboro, New Jersey

Plainsboro: township in Middlesex County, New Jersey

About

Plainsboro is a township located in the county of Middlesex in the U.S. state of New Jersey. Its population at the 2010 census was 22,999 and a population density of 727 people per km². After 10 years in 2020 city had an estimated population of 22,709 inhabitants.

The township was created 107 years ago in 1918.

Plainsboro locator map — Location of Plainsboro on New Jersey map.

Quick Facts about Plainsboro

Population	22,709 (2020)
Country	United States of America
State	New Jersey (United States)
County	Middlesex County
Postal code	08536
Area	31.61 km²
Latitude & Longitude	40.3334,-74.6004
Altitude	79 feet / 24 meters
Establishment	January 01, 1919 (107 years ago)
Time Zone	Eastern Time Zone
Local time	18:51:37 (14th April 2026)
Density	718 Pop. per km² as of 2020
Population growth	-1.28% (2010-2020)
Weather	83℉ Partly Sunny 7-days weather

Plainsboro Center NJ image

Geography

Plainsboro is located at 40°20'0"N 74°36'2"W (40.3334400, -74.6004300). It has 2 neighbors: Cranbury and West Windsor.

Plainsboro map

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Weather

83°F

Partly Sunny

5 to 10 mph W Tuesday

Partly sunny, with a high near 83.

7-Day Forecast

Official website of Plainsboro

Official Website

Plainsboro has 2 neighbours.

Cranbury township of New Jersey
West Windsor township in Mercer County, New Jersey, United States

Demographics

According to census records, the population of Plainsboro decreased by 1.28% in 10 years.

Year	Population	% Change	Method
2010	22,999	-	census
2011	23,058	0.26%	estimation process
2012	23,130	0.31%	estimation process
2013	23,131	0%	estimation process
2014	23,169	0.16%	estimation process
2015	23,152	-0.07%	estimation process
2016	23,069	-0.36%	estimation process
2017	23,056	-0.06%	estimation process
2018	22,968	-0.38%	estimation process
2019	22,884	-0.37%	estimation process
2020	22,709	-0.77%	estimation process

Plainsboro zip code is 08536. County name: Middlesex, County fips: 34023

Plainsborough

Nearby Schools and Colleges

Schools and campuses linked to Plainsboro, NJ. Select a name to open its map and contact details.

Code	Name	City	ZIP
186131	Princeton University	Princeton (NJ)	08544-0070
186122	Princeton Theological Seminary	Princeton (NJ)	08542-0803
185509	Mercer County Community College	West Windsor (NJ)	08550-3407
186283	Rider University	Lawrenceville (NJ)	08648-3099
475024	Fortis Institute-Lawrenceville	Lawrenceville (NJ)	08648

Nearby Transit Stations (28)

Rail and bus stations connected to Plainsboro, NJ. Select a station to open its map and address details.

Code	Name	Address	Type
PJC	Princeton Junction station	2 Wallace Road	RAIL
TRE	Trenton Transit Center	72 South Clinton Avenue	RAIL
NBK	New Brunswick station	French and Albany Streets	RAIL
MET	Metropark station	100 Middlesex-Essex Turnpike	RAIL
CWH	Cornwells Heights	700 Station Ave.	RAIL

Nearby Post Offices

Closest post offices linked to Plainsboro.

Post Office Name	City	ZIP
Plainsbor Post Office	Plainsboro (NJ)	08536
Princeton Junction Post Office	Princeton Junction (NJ)	08550
Princeton Post Office	Princeton (NJ)	08540
Kingston Post Office	Kingston (NJ)	08528
Palmer Square New Post Office	Princeton (NJ)	08542

Other cities in Middlesex County

Cities, towns, neighborhoods & other populated places in Middlesex County , NJ. (more)

City Name	Population	Title
Woodbridge	99,430	Census-designated place in New Jersey, United States
Edison	98,721	Township in Middlesex County, New Jersey, United States
Menlo Park	97,687	Township in Middlesex County, New Jersey, United States
Old Bridge	65,414	Census-designated place in Old Bridge Township, Middlesex County, New Jersey
Piscataway	57,164	Township in New Jersey, United States
New Brunswick	56,182	The most populous city in Middlesex County, New Jersey.
Perth Amboy	51,309	The most populous city in Middlesex County, New Jersey.
East Brunswick	48,309	Township in Middlesex County, New Jersey
Sayreville	43,855	A borough in Middlesex County, New Jersey.
Sayreville Junction	42,890	A census-designated place in Middlesex County, New Jersey.
South Plainfield	23,965	Borough in Middlesex County, New Jersey
Carteret	23,383	Borough in Middlesex County, New Jersey, United States
South Old Bridge	23,233	City in Middlesex County, New Jersey, United States of America
Morristown	19,229	Town in Morris County, New Jersey, USA
Iselin	18,695	Unincorporated community in New Jersey, United States
Avenel	17,011	Town in New Jersey, United States

Distance to Other Cities

Plainsboro distances to largest New Jersey cities