Grantham, NH Elevation & Topographic Map
Elevation
2,660 ft 810 m2,220 ft 680 m2,000 ft 610 m1,560 ft 475 m1,120 ft 345 m910 ft 275 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.
- Town area
- Fades everything outside the official town boundaries (US Census).
Elevation Data
Grantham sits at about 1,180 ft (360 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
1,180 ft 360 m
most residents: 1,110–1,410 ft
Lowest
910 ft 275 m
on the southwest side
Highest
2,660 ft 810 m
on Grantham Mountain
Average
1,370 ft 415 m
all land inside town boundaries
Grantham spans about 1,750 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 | 1,180 ft360 m |
| Highest point Inside town boundaries, on Grantham Mountain | 2,660 ft810 m |
| Lowest point Inside town boundaries, on the southwest side | 910 ft275 m |
| Town center USGS map point for Grantham | 950 ft290 m |
| Airport (LEB) FAA airport elevation, the highest point of its runways, 7.6 mi northwest of the town boundaries | 603 ft184 m |
| Average of all land | 1,370 ft415 m |
Elevation profile, west to east
5.7 mi west to east through the town center.
Topographic Map
- Location
- Town in Sullivan County, New Hampshire, United States
- Population
- 3,483 2024 est.
- Land area
- 27.2 sq mi + 0.8 sq mi water
- Density
- 128 per sq mi
- Coordinates
- 43.4895° N, 72.1376° W
- Time zone
- Eastern UTC−5 / −4
- Landform region
- New England
- Drains to
- Connecticut River → Long Island Sound
- Airport
- Lebanon Municipal (LEB) 603 ft
- ZIP codes 1
- 03753
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Springfield1,370 ft
- New London1,240 ft
- Blodgett Landing1,200 ft
- Grantham1,180 ft
- Sunapee1,140 ft
- Croydon1,130 ft
- Grafton1,110 ft
- Cornish980 ft
- Enfield950 ft
- Newport940 ft
- Plainfield910 ft
Rankings by typical elevation
- Towns in New Hampshire37th highest of 260
- Towns in Sullivan County7th highest of 15
Peaks and hills nearest, by height
- Mount Cardigan3,060 ft
- Summit2,730 ft
- Grantham Mountain2,660 ft
- North Peak2,300 ft
- Melvin Hill2,300 ft
How we measure
- Typical elevation: the population-weighted median: every 2020 Census block inside the town 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 town 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. All public domain.