Frelinghuysen Township, Warren County, New Jersey
Frelinghuysen Township is a township in Warren County, New Jersey. About 2,137 people live there (2020–2024 estimate). It covers 23.6 sq mi (61.2 km²) of land and uses Eastern Time. It has its own local government.
- Population, 2020–2024 estimate
- 2,137 ± 260
- County
- Warren County
- School districts
- North Warren Regional School District7–12 · high schoolFrelinghuysen Township School DistrictK–6 · elementary
- Land area
- 23.6 sq mi (61.2 km²)
- Type
- TownshipIts own local government
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $122,727 ± $5,830
- Median home value
- $455,500 ± $32,343
- Water area
- 0.25 sq mi (0.65 km²)
- State
- New Jersey
- Census code (GEOID)
- 3404125320
- Coordinates (central point)
- 40.959486, -74.895154
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 Frelinghuysen Township, largest first
- Johnsonburg (CDP)406 people
- Marksboro (CDP)193 people
These places’ central points lie inside Frelinghuysen 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
- Allamuchy Township4.5 mi southeast
- Green Township, Sussex County4.9 mi east
- Blairstown Township5.5 mi west
- Independence Township5.6 mi south
- Hope Township5.6 mi southwest
- Fredon Township, Sussex County6.0 mi northeast
- Hardwick Township8.0 mi northwest
- Stillwater Township, Sussex County8.0 mi north
These towns, townships, cities and boroughs share a boundary with Frelinghuysen Township. Distances are straight lines between central points, not driving distances.
Other townships in Warren County, largest first
- Lopatcong Township9,321 people
- Mansfield Township7,778 people
- Washington Township6,691 people
- Blairstown Township5,741 people
- Independence Township5,536 people
- Greenwich Township5,512 people
- Allamuchy Township5,427 people
- White Township4,679 people
- Pohatcong Township3,266 people
- Franklin Township2,992 people
- Knowlton Township2,919 people
- Liberty Township2,680 people
All 16
- Oxford Township2,665 people
- Harmony Township2,517 people
- Hope Township1,818 people
- Hardwick Township1,423 people
People counts are American Community Survey 2020–2024 5-year estimates. See Warren County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Frelinghuysen Township
- Longest day
- 15 hours 8 minutes around June 21
- Shortest day
- 9 hours 14 minutes around December 21
- Earliest sunrise
- 5:26 AM around June 14
- Latest sunrise
- 7:36 AM the day before clocks go back in November
- Earliest sunset
- 4:31 PM around December 8
- Latest sunset
- 8:35 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 | 7:22 AM | 4:56 PM | 9 h 34 min |
| Feb 15 | 6:54 AM | 5:33 PM | 10 h 39 min |
| Mar 15 | 7:11 AM | 7:06 PM | 11 h 55 min |
| Apr 15 | 6:20 AM | 7:39 PM | 13 h 19 min |
| May 15 | 5:42 AM | 8:10 PM | 14 h 28 min |
| Jun 15 | 5:26 AM | 8:33 PM | 15 h 7 min |
| Jul 15 | 5:40 AM | 8:30 PM | 14 h 50 min |
| Aug 15 | 6:09 AM | 7:58 PM | 13 h 49 min |
| Sep 15 | 6:39 AM | 7:08 PM | 12 h 29 min |
| Oct 15 | 7:10 AM | 6:19 PM | 11 h 9 min |
| Nov 15 | 6:46 AM | 4:41 PM | 9 h 55 min |
| Dec 15 | 7:17 AM | 4:32 PM | 9 h 15 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 Warren County or the local office.
Find the township or town where you are now or find your county.