South Brunswick Township, Middlesex County, New Jersey
South Brunswick Township is a township in Middlesex County, New Jersey. About 47,137 people live there (2020–2024 estimate). It covers 40.6 sq mi (105 km²) of land and uses Eastern Time. It has its own local government.
- Population, 2020–2024 estimate
- 47,137 ± 34
- County
- Middlesex County
- School district
- South Brunswick Township School District
- Land area
- 40.6 sq mi (105 km²)
- Type
- TownshipIts own local government
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $150,933 ± $10,917
- Median home value
- $582,700 ± $25,552
- Water area
- 0.4 sq mi (1.04 km²)
- State
- New Jersey
- Census code (GEOID)
- 3402368790
- Coordinates (central point)
- 40.384695, -74.522762
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.
Cities, towns and communities in South Brunswick Township, largest first
- Kendall Park (CDP)10,011 people
- Monmouth Junction (CDP)9,141 people
- Dayton (CDP)7,952 people
- Heathcote (CDP)7,717 people
- Deans (CDP)1,154 people
These places’ central points lie inside South Brunswick 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
- Plainsboro Township4.5 mi southwest
- Cranbury Township4.9 mi south
- North Brunswick Township5.1 mi northeast
- East Brunswick Township6.2 mi northeast
- Franklin Township, Somerset County6.5 mi north
- Monroe Township6.7 mi southeast
- Princeton7.8 mi west
These towns, townships, cities and boroughs share a boundary with South Brunswick Township. Distances are straight lines between central points, not driving distances.
Other townships in Middlesex County, largest first
- Edison Township108,164 people
- Woodbridge Township104,355 people
- Old Bridge Township68,406 people
- Piscataway Township61,297 people
- East Brunswick Township49,945 people
- Monroe Township49,032 people
- North Brunswick Township44,375 people
- Plainsboro Township24,167 people
- Cranbury Township4,012 people
People counts are American Community Survey 2020–2024 5-year estimates. See Middlesex County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in South Brunswick Township
- Longest day
- 15 hours 3 minutes around June 21
- Shortest day
- 9 hours 17 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
- 8:32 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.
| Day | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Jan 15 | 7:19 AM | 4:56 PM | 9 h 37 min |
| Feb 15 | 6:51 AM | 5:33 PM | 10 h 42 min |
| Mar 15 | 7:09 AM | 7:04 PM | 11 h 55 min |
| Apr 15 | 6:20 AM | 7:36 PM | 13 h 16 min |
| May 15 | 5:42 AM | 8:07 PM | 14 h 25 min |
| Jun 15 | 5:27 AM | 8:29 PM | 15 h 2 min |
| Jul 15 | 5:40 AM | 8:27 PM | 14 h 47 min |
| Aug 15 | 6:08 AM | 7:55 PM | 13 h 47 min |
| Sep 15 | 6:38 AM | 7:07 PM | 12 h 29 min |
| Oct 15 | 7:08 AM | 6:18 PM | 11 h 10 min |
| Nov 15 | 6:43 AM | 4:40 PM | 9 h 57 min |
| Dec 15 | 7:13 AM | 4:32 PM | 9 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 Middlesex County or the local office.
Find the township or town where you are now or find your county.