Frelinghuysen Township, NJ Elevation & Topographic Map
Elevation
1,090 ft 330 m900 ft 275 m810 ft 245 m630 ft 190 m440 ft 135 m350 ft 105 m
Contours every 200 ft, bold every 1,000 ft
USGS 3DEP · U.S. Census Bureau
How to use this mapviews, tools and data
- Elevation
- Ground colored by height from green (lowest) to white (highest), with contour lines every 40–500 ft (USGS data).
- Satellite
- A 2016 satellite photo at 33 ft (10 m) detail; contours off.
- 3D
- Tilt and turn the terrain; hills are raised 1.5×, or set ×1 for true height.
- Click or tap anywhere
- The exact elevation of that spot in ft and m.
- Measure
- Pick two points for the climb, descent and grade along a straight line.
- Township area
- Fades everything outside the official township boundaries (US Census).
Elevation Data
Frelinghuysen Township sits at about 630 ft (190 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
630 ft 190 m
most residents: 540–740 ft
Lowest
350 ft 105 m
on the northwest side
Highest
1,090 ft 330 m
on the south edge, below higher ground just outside
Average
630 ft 195 m
all land inside township boundaries
Frelinghuysen Township spans about 740 ft of height, so no single spot tells the whole story. The ruler shows where its people live, and where the other numbers you'll see come from.
| Figure | Elevation |
|---|---|
| Typical Where people live: half of residents higher, half lower | 630 ft190 m |
| Highest point Inside township boundaries, on the south edge, below higher ground just outside | 1,090 ft330 m |
| Lowest point Inside township boundaries, on the northwest side | 350 ft105 m |
| Airport (1N7) FAA airport elevation, the highest point of its runways, 2.7 mi west of the township boundaries | 372 ft113 m |
| Average of all land | 630 ft195 m |
Elevation profile, south to north
5.8 mi south to north through the middle of Frelinghuysen Township.
Topographic Map
- Location
- Township in Warren County, New Jersey, United States
- Population
- 2,242 2024 est.
- Land area
- 23.6 sq mi + 0.2 sq mi water
- Density
- 95 per sq mi
- Coordinates
- 40.9595° N, 74.8952° W
- Time zone
- Eastern UTC−5 / −4
- Landform region
- New England
- Drains to
- Delaware River → Atlantic Ocean
- Airport
- Blairstown (1N7) 372 ft
- ZIP codes 4
- 07821 07825 07846 07860
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Panther Valley690 ft
- Allamuchy Township680 ft
- Frelinghuysen Township630 ft
- Green Township620 ft
- Blairstown Township590 ft
- Marksboro580 ft
- Johnsonburg570 ft
- Hope Township510 ft
- Silver Lake, Warren County450 ft
- Hope440 ft
- Blairstown370 ft
Rankings by typical elevation
- Towns in New Jersey65th highest of 941
- Towns in Warren County7th highest of 58
Peaks and hills nearest, by height
- North Knob2,692 ft
- Jenny Jump Mountain1,130 ft
- High Rocks830 ft
- Post Island570 ft
- Stevens Island540 ft
How we measure
- Typical elevation: the population-weighted median: every 2020 Census block inside the township boundaries, at its USGS 3DEP height, weighted by the people who live there. Half of residents live higher, half lower.
- Lowest, highest, average: USGS 3DEP bare-earth heights on a 1 arc-second (≈100 ft, 30 m) grid, land only, inside the Census township boundaries (TIGER, Jan 1 2026).
- Nearby Places: nearby towns and rankings use each town's typical elevation, so every town is compared like for like. Rankings count every city, town, township and census-designated place, including places inside a town. Peaks and hills: the nearest summits with at least 980 ft (300 m) of prominence within 62 mi (100 km), then federal (GNIS) summits within 16 mi (25 km) when there are fewer than 5; each is the 3DEP top on a ~7 ft (2 m) window, or the NGS published height when a usable survey mark sits within 160 ft (50 m) of it (shown as published).
- Rounding: computed heights are rounded to 10 ft (5 m), or to 1 ft (1 m) under 100 ft; 3DEP is good to about a meter, not a foot. Published figures (FAA airport elevation, NGS survey heights) are shown as their publisher gives them.
- Datum: North American Vertical Datum of 1988 (NAVD 88). NGS plans to replace NAVD 88 with a new datum (NAPGD2022); heights will then shift slightly.
- Sources: USGS 3DEP, GNIS, Watershed Boundary Dataset and physiographic provinces; U.S. Census Bureau (boundaries, 2020 blocks, 2024 population estimates, Gazetteer areas, ZIP code areas); FAA airport data; BTS time zones; NOAA NGS survey heights. All public domain.