Rockingham County, NH Elevation & Topographic Map

Topographic elevation map of Rockingham County, New Hampshire, shaded from sea level on the Atlantic Ocean to 1,350 ft on Nottingham Mountain
Elevation
1,350 ft 410 m1,010 ft 310 m840 ft 255 m510 ft 155 m170 ft 50 m0 ft 0 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

Rockingham County averages about 260 ft (80 m) above sea level across all its land. Its ground runs from sea level on the Atlantic Ocean to 1,350 ft on Nottingham Mountain.

Average elevation
260 ft 80 m
all land inside the county
Highest
1,350 ft 410 m
on Nottingham Mountain
Lowest
0 ft 0 m
at sea level on the Atlantic Ocean

Rockingham County spans about 1,350 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 land260 ft80 m
Highest point
Inside the county, on Nottingham Mountain (3DEP terrain model; no NGS survey height)
1,350 ft410 m
Lowest point
Where the land meets the Atlantic Ocean
0 ft0 m

Elevation profile, west to east

36 mi west to east through Derry.

Topographic Map

Topographic elevation map of Rockingham County, New Hampshire, shaded from sea level on the Atlantic Ocean to 1,350 ft on Nottingham Mountain
County boundary (dashed) over shaded terrain, with contours every 100 ft (30 m).
Location
County in New Hampshire, United States
Population
322,433 2024 est.
Land area
695.6 sq mi + 99.7 sq mi water
Density
464 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
New England 99%
Drains to
Atlantic Ocean
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Merrimack County730 ft
  2. Hillsborough County660 ft
  3. Strafford County420 ft
  4. York County, ME300 ft
  5. Rockingham County260 ft
  6. Essex County, MA89 ft

Rankings by average elevation

Peaks and hills highest inside

  • Nottingham Mountain1,350 ft
  • Saddleback Mountain1,160 ft
  • Levi Hill990 ft
  • Mount Pawtuckaway980 ft
  • Hall Mountain930 ft
All 39 towns in Rockingham County by typical elevation
  1. Northwood640 ft
  2. Deerfield510 ft
  3. Candia500 ft
  4. Chester370 ft
  5. Auburn340 ft
  6. Derry330 ft
  7. Londonderry310 ft
  8. Nottingham300 ft
  9. Windham290 ft
  10. Atkinson270 ft
  11. Sandown270 ft
  12. Hampstead250 ft
  13. Raymond240 ft
  14. Danville210 ft
  15. Fremont170 ft
  16. Epping170 ft
  17. Salem150 ft
  18. Newton150 ft
  19. Kingston130 ft
  20. Brentwood130 ft
  21. Kensington130 ft
  22. Plaistow120 ft
  23. South Hampton120 ft
  24. East Kingston120 ft
  25. Newfields120 ft
  26. Stratham78 ft
  27. Newmarket67 ft
  28. North Hampton63 ft
  29. Greenland60 ft
  30. Exeter54 ft
  31. Newington51 ft
  32. Hampton Falls48 ft
  33. Seabrook43 ft
  34. Portsmouth35 ft
  35. New Castle29 ft
  36. Rye25 ft
  37. Hampton24 ft
  38. Seabrook Beach8 ft
  39. Hampton Beach7 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.
  • 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, −6 ft at 42.8949° N, 70.8199° W, is in such a hollow or patch and is not counted; this coastal land's lowest point is sea level on the coast.
  • 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.