Merrimack County, NH Elevation & Topographic Map

Topographic elevation map of Merrimack County, New Hampshire, shaded from 180 ft on the southeast side to 2,930 ft on Mount Kearsarge
Elevation
2,930 ft 895 m2,240 ft 685 m1,900 ft 580 m1,210 ft 370 m520 ft 160 m180 ft 55 m
Contours every 500 ft, bold every 2,500 ft
USGS 3DEP · U.S. Census Bureau
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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.
County area
Fades everything outside the official county boundary (US Census).

Elevation Data

Merrimack County averages about 730 ft (225 m) above sea level across all its land. Its ground runs from 180 ft on the southeast side to 2,930 ft on Mount Kearsarge.

Average elevation
730 ft 225 m
all land inside the county
Highest
2,930 ft 895 m
on Mount Kearsarge
Lowest
180 ft 55 m
on the southeast side

Merrimack County spans about 2,750 ft of height, so no single spot tells the whole story. The ruler shows where most of its land lies, and where the other numbers you'll see come from.

FigureElevation
Average of all land730 ft225 m
Highest point
Inside the county, on Mount Kearsarge (3DEP terrain model; no NGS survey height)
2,930 ft895 m
Lowest point
Inside the county, on the southeast side
180 ft55 m

Elevation profile, west to east

37 mi west to east through Concord.

Topographic Map

Topographic elevation map of Merrimack County, New Hampshire, shaded from 180 ft on the southeast side to 2,930 ft on Mount Kearsarge
County boundary (dashed) over shaded terrain, with contours every 200 ft (61 m).
Location
County in New Hampshire, United States
Population
157,869 2024 est.
Land area
932.9 sq mi + 22.1 sq mi water
Density
169 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
New England
Drains to
Atlantic Ocean 96%
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Grafton County1,510 ft
  2. Sullivan County1,190 ft
  3. Belknap County790 ft
  4. Merrimack County730 ft
  5. Hillsborough County660 ft
  6. Strafford County420 ft
  7. Rockingham County260 ft

Rankings by average elevation

Peaks and hills highest inside

  • Mount Kearsarge2,930 ft
  • Summit2,730 ft
  • South Peak, Merrimack County2,620 ft
  • Black Mountain, Merrimack County2,560 ft
  • Ragged Mountain2,280 ft
All 32 towns in Merrimack County by typical elevation
  1. New London1,240 ft
  2. Newbury1,230 ft
  3. Blodgett Landing1,200 ft
  4. Danbury970 ft
  5. Sutton940 ft
  6. Wilmot850 ft
  7. Bradford820 ft
  8. Salisbury750 ft
  9. Hill740 ft
  10. Andover690 ft
  11. Dunbarton590 ft
  12. Warner590 ft
  13. Canterbury590 ft
  14. Northfield580 ft
  15. Pittsfield580 ft
  16. Epsom530 ft
  17. Webster530 ft
  18. Chichester520 ft
  19. Bow510 ft
  20. Loudon480 ft
  21. Boscawen480 ft
  22. Tilton Northfield partly480 ft
  23. Henniker470 ft
  24. Hopkinton440 ft
  25. Franklin440 ft
  26. Contoocook390 ft
  27. South Hooksett380 ft
  28. Hooksett380 ft
  29. Pembroke350 ft
  30. Concord340 ft
  31. Allenstown340 ft
  32. Suncook330 ft
How we measure
  • Average: every USGS 3DEP bare-earth cell of land inside the Census county boundary (TIGER/Line, Jan 1 2026), weighted equally, on a 1 arc-second (≈100 ft, 30 m) grid. Land means the boundary minus Census area water.
  • Highest and lowest: the highest land cell; it is a named summit, so its height is the peak method: the 3DEP top on a ~7 ft (2 m) window, or the NGS published height when a survey mark sits within 160 ft (50 m) of it. Lowest: the lowest land cell; coastal ground within 3 ft (1 m) of named tidal water counts as sea level.
  • Nearby Places: neighboring counties and rankings use each one's average elevation, on its own grid, the same figure its page shows. Peaks and hills: the highest summits inside the county with at least 980 ft (300 m) of prominence, then the highest federal (GNIS) summits inside it 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).
  • Towns: each town's typical elevation (population-weighted median of its own 2020 blocks at 1 arc-second); a town is listed when any of its 2020 residents live in the county.
  • 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 (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 (TIGER boundaries and water, 2020 blocks, 2024 population estimates, county adjacency); NOAA NGS survey heights; BTS time zones. All public domain.