Alton, NH Elevation & Topographic Map
Elevation
1,900 ft 580 m1,550 ft 475 m1,380 ft 420 m1,030 ft 315 m680 ft 205 m500 ft 155 m
Contours every 500 ft, bold every 2,500 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
Alton sits at about 690 ft (210 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
690 ft 210 m
most residents: 530–1,020 ft
Lowest
500 ft 155 m
on the northwest side
Highest
1,900 ft 580 m
on the northwest side
Average
810 ft 250 m
all land inside town boundaries
Alton spans about 1,400 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 | 690 ft210 m |
| Highest point Inside town boundaries, on the northwest side | 1,900 ft580 m |
| Lowest point Inside town boundaries, on the northwest side | 500 ft155 m |
| Town center USGS map point for Alton | 540 ft165 m |
| Average of all land | 810 ft250 m |
| Nearest peak Mount Shaw, 8.6 mi north of the town boundaries | 2,990 ft910 m |
Elevation profile, west to east
6.1 mi west to east through the town center.
Topographic Map
- Location
- Town in Belknap County, New Hampshire, United States
- Population
- 6,051 2024 est.
- Land area
- 63.7 sq mi + 19.5 sq mi water
- Density
- 95 per sq mi
- Coordinates
- 43.4523° N, 71.2176° W
- Time zone
- Eastern UTC−5 / −4
- Landform region
- New England
- Drains to
- Merrimack River → Atlantic Ocean
- ZIP codes 2
- 03809 03810
⤓ Download this map
WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.
Sources: U.S. Census Bureau, USGS
Nearby Places
Nearby towns by typical elevation
- Gilmanton830 ft
- New Durham750 ft
- Middleton700 ft
- Alton690 ft
- Brookfield680 ft
- Barnstead670 ft
- Wolfeboro590 ft
- Pittsfield580 ft
- Strafford550 ft
- Union490 ft
- Farmington360 ft
Rankings by typical elevation
- Towns in New Hampshire123rd highest of 260
- Towns in Belknap County4th highest of 12
Peaks and hills nearest, by height
- Mount Shaw2,990 ft
- Belknap Mountain2,382 ft
- Red Hill2,030 ft
- Hersey Mountain2,000 ft
- Copple Crown Mountain1,870 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); BTS time zones; NOAA NGS survey heights. All public domain.