Jefferson Township, Morris County, New Jersey
Jefferson Township is a township in Morris County, New Jersey. About 20,587 people live there (2020–2024 estimate). It covers 39 sq mi (101 km²) of land and uses Eastern Time. It has its own local government.
- Population, 2020–2024 estimate
- 20,587 ± 27
- County
- Morris County
- School district
- Jefferson Township School District
- Land area
- 39 sq mi (101 km²)
- Type
- TownshipIts own local government
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $119,836 ± $12,888
- Median home value
- $428,200 ± $17,615
- Water area
- 3.84 sq mi (9.95 km²)
- State
- New Jersey
- Census code (GEOID)
- 3402734980
- Coordinates (central point)
- 41.001257, -74.551290
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 Jefferson Township, largest first
- Oak Ridge (CDP)10,954 people
- Lake Hopatcong (CDP)10,259 people
These places’ central points lie inside Jefferson 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
- Rockaway Township4.0 mi southeast
- Sparta Township, Sussex County5.3 mi northwest
- Hopatcong (borough)6.7 mi southwest
- Mount Arlington (borough)7.3 mi southwest
- Hardyston Township, Sussex County8.5 mi north
- Roxbury Township9.4 mi southwest
- West Milford Township, Passaic County11 mi northeast
These towns, townships, cities and boroughs share a boundary with Jefferson Township. Distances are straight lines between central points, not driving distances.
Other townships in Morris County, largest first
- Parsippany-Troy Hills Township56,397 people
- Mount Olive Township29,149 people
- Randolph Township26,604 people
- Rockaway Township26,189 people
- Morris Township23,424 people
- Roxbury Township23,211 people
- Montville Township22,876 people
- Washington Township18,265 people
- Denville Township17,205 people
- Pequannock Township15,641 people
- Hanover Township14,769 people
- East Hanover Township11,152 people
All 19
- Chatham Township11,102 people
- Long Hill Township8,652 people
- Chester Township7,748 people
- Mendham Township6,018 people
- Boonton Township4,423 people
- Mine Hill Township4,048 people
- Harding Township3,896 people
People counts are American Community Survey 2020–2024 5-year estimates. See Morris County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Jefferson Township
- Longest day
- 15 hours 7 minutes around June 21
- Shortest day
- 9 hours 13 minutes around December 21
- Earliest sunrise
- 5:25 AM around June 14
- Latest sunrise
- 7:34 AM the day before clocks go back in November
- Earliest sunset
- 4:29 PM around December 8
- Latest sunset
- 8:34 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 | 7:20 AM | 4:54 PM | 9 h 34 min |
| Feb 15 | 6:52 AM | 5:32 PM | 10 h 40 min |
| Mar 15 | 7:10 AM | 7:04 PM | 11 h 54 min |
| Apr 15 | 6:19 AM | 7:37 PM | 13 h 18 min |
| May 15 | 5:40 AM | 8:09 PM | 14 h 29 min |
| Jun 15 | 5:25 AM | 8:32 PM | 15 h 7 min |
| Jul 15 | 5:38 AM | 8:29 PM | 14 h 51 min |
| Aug 15 | 6:07 AM | 7:56 PM | 13 h 49 min |
| Sep 15 | 6:38 AM | 7:07 PM | 12 h 29 min |
| Oct 15 | 7:09 AM | 6:17 PM | 11 h 8 min |
| Nov 15 | 6:45 AM | 4:39 PM | 9 h 54 min |
| Dec 15 | 7:15 AM | 4:30 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 Morris County or the local office.
Find the township or town where you are now or find your county.