Loudon, NH Elevation & Topographic Map
Elevation
1,060 ft 320 m870 ft 265 m780 ft 235 m590 ft 180 m400 ft 120 m310 ft 95 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
Loudon sits at about 480 ft (150 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
480 ft 150 m
most residents: 370–700 ft
Lowest
310 ft 95 m
on the south side
Highest
1,060 ft 320 m
on the northeast side
Average
580 ft 175 m
all land inside town boundaries
Loudon spans about 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 | 480 ft150 m |
| Highest point Inside town boundaries, on the northeast side | 1,060 ft320 m |
| Lowest point Inside town boundaries, on the south side | 310 ft95 m |
| Town center USGS map point for Loudon | 380 ft115 m |
| Airport (CON) FAA airport elevation, the highest point of its runways, 3.9 mi south of the town boundaries | 342 ft104 m |
| Average of all land | 580 ft175 m |
| Nearest peak Belknap Mountain, 9.0 mi north of the town boundaries (NGS survey) | 2,382 ft726 m |
Elevation profile, west to east
5.2 mi west to east through the town center.
Topographic Map
- Location
- Town in Merrimack County, New Hampshire, United States
- Population
- 5,740 2024 est.
- Land area
- 46.2 sq mi + 0.6 sq mi water
- Density
- 124 per sq mi
- Coordinates
- 43.2856° N, 71.4673° W
- Time zone
- Eastern UTC−5 / −4
- Landform region
- New England
- Drains to
- Merrimack River → Atlantic Ocean
- Airport
- Concord Municipal (CON) 342 ft
- ZIP codes 2
- 03263 03307
⤓ Download this map
WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.
Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Gilmanton830 ft
- Barnstead670 ft
- Canterbury590 ft
- Pittsfield580 ft
- Epsom530 ft
- Chichester520 ft
- Loudon480 ft
- Boscawen480 ft
- Pembroke350 ft
- Concord340 ft
- Allenstown340 ft
Rankings by typical elevation
- Towns in New Hampshire180th highest of 260
- Towns in Merrimack County20th highest of 31
Peaks and hills nearest, by height
- Mount Kearsarge2,930 ft
- Belknap Mountain2,382 ft
- Ragged Mountain2,280 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).
- Pits: the lowest point is the lowest ground outside closed hollows (quarry floors, mine pits, terrain-model artifacts): any hollow under 0.4 sq mi (1 km²), and any hollow under 2 sq mi (5 km²) whose floor is more than 100 ft (30 m) below its rim; and outside patches below sea level of under 0.4 sq mi (1 km²). The single lowest 3DEP cell, 310 ft at 43.2493° N, 71.4568° W, is in such a hollow or patch and is not counted.
- 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.