East Windsor Township, Mercer County, New Jersey

East Windsor Township is a township in Mercer County, New Jersey. About 30,062 people live there (2020–2024 estimate). It covers 15.6 sq mi (40.3 km²) of land and uses Eastern Time. It has its own local government.

NewarkJersey CityPaterson
East Windsor Township in New Jersey
Robbinsville TownshipWest Windsor Township
East Windsor Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
30,062 ± 63
County
Mercer County
School district
East Windsor Regional School District
Land area
15.6 sq mi (40.3 km²)
Type
TownshipIts own local government
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$105,208 ± $11,768
Median home value
$397,400 ± $23,767
Water area
0.09 sq mi (0.23 km²)
State
New Jersey
Census code (GEOID)
3402119780
Coordinates (central point)
40.259139, -74.533576

These coordinates mark a central point for the area, not a street address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Census place in East Windsor Township

  1. Twin Rivers (CDP)8,382 people

This place’s central point lies inside East Windsor Township. A place can reach across the line, and its government, if it has one, can be separate from the township’s.

Bordering areas, nearest first

  1. Hightstown (borough)0.8 mi northeast
  2. Cranbury Township, Middlesex County3.8 mi north
  3. Robbinsville Township4.1 mi southwest
  4. West Windsor Township5.4 mi northwest
  5. Plainsboro Township, Middlesex County6.0 mi northwest
  6. Millstone Township, Monmouth County6.2 mi southeast
  7. Monroe Township, Middlesex County6.9 mi northeast

These towns, townships, cities and boroughs share a boundary with East Windsor Township. Distances are straight lines between central points, not driving distances.

Other townships in Mercer County, largest first

  1. Hamilton Township92,506 people
  2. Ewing Township35,604 people
  3. Lawrence Township32,313 people
  4. West Windsor Township30,479 people
  5. Hopewell Township17,595 people
  6. Robbinsville Township15,641 people

People counts are American Community Survey 2020–2024 5-year estimates. See Mercer County for its cities, ZIP Code areas and county seat.

Sunrise and sunset in East Windsor Township

Longest day
15 hours 3 minutes around June 21
Shortest day
9 hours 18 minutes around December 21
Earliest sunrise
5:27 AM around June 14
Latest sunrise
7:33 AM the day before clocks go back in November
Earliest sunset
4:31 PM around December 8
Latest sunset
8:31 PM around June 27

Clocks go forward an hour on the second Sunday in March and back on the first Sunday in November, so sunrise and sunset jump an hour later in March and an hour earlier in November.

Sunrise and sunset on the 15th of each month
DaySunriseSunsetDaylight
Jan 157:18 AM4:56 PM9 h 38 min
Feb 156:51 AM5:33 PM10 h 42 min
Mar 157:09 AM7:04 PM11 h 55 min
Apr 156:20 AM7:36 PM13 h 16 min
May 155:42 AM8:07 PM14 h 25 min
Jun 155:27 AM8:29 PM15 h 2 min
Jul 155:41 AM8:26 PM14 h 45 min
Aug 156:09 AM7:55 PM13 h 46 min
Sep 156:38 AM7:07 PM12 h 29 min
Oct 157:08 AM6:18 PM11 h 10 min
Nov 156:43 AM4:41 PM9 h 58 min
Dec 157:13 AM4:32 PM9 h 19 min

Approximate times for a flat horizon at the central point; the days move by a day or so from year to year. Hills and weather can change what you see.

Before using this answer on a form

A township line is not always the line on your mail: a mailing address can name another town or post office, and school districts, ZIP Codes and tax districts follow their own lines. For taxes, voting or permits, check the full address with Mercer County or the local office.

Find the township or town where you are now or find your county.

See this area on Census.gov ↗