Chelmsford, MA Elevation & Topographic Map

Topographic elevation map of Chelmsford, Massachusetts, shaded from 91 ft on the northwest side to 408 ft on Robbins Hill
Elevation
410 ft 125 m330 ft 100 m290 ft 90 m210 ft 65 m130 ft 40 m91 ft 28 m
Contours every 200 ft, bold every 1,000 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.
Town area
Fades everything outside the official town boundaries (US Census).

Elevation Data

Chelmsford sits at about 150 ft (45 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
150 ft 45 m
most residents: 110–240 ft
Lowest
91 ft 28 m
on the northwest side
Highest
408 ft 124 m
on Robbins Hill
Average
170 ft 50 m
all land inside town boundaries

Chelmsford spans about 319 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.

FigureElevation
Typical
Where people live: half of residents higher, half lower
150 ft45 m
Highest point
Inside town boundaries, on Robbins Hill
408 ft124 m
Lowest point
Inside town boundaries, on the northwest side
91 ft28 m
Town center
USGS map point for Chelmsford
240 ft75 m
Average of all land170 ft50 m

Elevation profile, west to east

5.2 mi west to east through the town center.

Topographic Map

Topographic elevation map of Chelmsford, Massachusetts, shaded from 91 ft on the northwest side to 408 ft on Robbins Hill
Town boundaries (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
Town in Middlesex County, Massachusetts, United States
Population
36,953 2024 est.
Land area
22.4 sq mi + 0.7 sq mi water
Density
1,651 per sq mi
Coordinates
42.5998° N, 71.3673° W
Time zone
Eastern UTC−5 / −4
Landform region
New England
Drains to
Merrimack River → Atlantic Ocean
ZIP codes 2
01824 01863
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Sources: U.S. Census Bureau, USGS

Nearby Places

Nearby towns by typical elevation

  1. Littleton Common280 ft
  2. Littleton260 ft
  3. Westford220 ft
  4. Carlisle210 ft
  5. Dunstable210 ft
  6. Tyngsborough180 ft
  7. Chelmsford150 ft
  8. Dracut150 ft
  9. Billerica140 ft
  10. Lowell120 ft
  11. Tewksbury120 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Monadnock Mountain3,170 ft
  • Mount Kearsarge2,930 ft
  • Summit2,730 ft
  • North Pack Monadnock Mountain2,260 ft
  • Crotched Mountain2,063 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.