Groton, CT Elevation & Topographic Map

Topographic elevation map of Groton, Connecticut, shaded from sea level level on Baker Cove to 340 ft on the north edge, below higher ground just outside
Elevation
340 ft 105 m250 ft 80 m210 ft 65 m130 ft 40 m42 ft 13 m0 ft 0 m
Contours every 200 ft, bold every 1,000 ft
USGS 3DEP · U.S. Census Bureau
⤓ Download this map
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

Groton sits at about 92 ft (28 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
92 ft 28 m
most residents: 16–200 ft
Lowest
0 ft 0 m
at sea level on Baker Cove
Highest
340 ft 105 m
on the north edge, below higher ground just outside
Average
95 ft 29 m
all land inside town boundaries

Groton spans about 340 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
92 ft28 m
Highest point
Inside town boundaries, on the north edge, below higher ground just outside
340 ft105 m
Lowest point
Where the land meets Baker Cove
0 ft0 m
Town center
USGS map point for Groton
78 ft24 m
Airport (WST)
FAA airport elevation, the highest point of its runways, 8.5 mi east of the town boundaries
81 ft25 m
Average of all land95 ft29 m

Elevation profile, west to east

6.0 mi west to east through the town center.

Topographic Map

Topographic elevation map of Groton, Connecticut, shaded from sea level level on Baker Cove to 340 ft on the north edge, below higher ground just outside
Town boundaries (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
Town in New London County, Connecticut, United States
Population
38,762 2024 est.
Land area
31.1 sq mi + 14.2 sq mi water
Density
1,246 per sq mi
Coordinates
41.3501° N, 72.0784° W
Time zone
Eastern UTC−5 / −4
Landform region
New England
Drains to
Long Island Sound
Airport
Westerly State (WST) 81 ft
ZIP codes 2
06340 06355
⤓ 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

  1. Hopkinton, RI130 ft
  2. Groton92 ft
  3. Westerly, RI65 ft
  4. Ashaway, RI65 ft
  5. Bradford, RI60 ft
  6. Fishers Island, NY20 ft
  7. Watch Hill, RI14 ft
  8. Weekapaug, RI13 ft
  9. Quonochontaug, RI12 ft
  10. Misquamicut, RI11 ft
  11. Orient, NY10 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Bailey Hill240 ft
  • Baldwin Hill, New London County240 ft
  • Crooked S Hill180 ft
  • Averys Hill150 ft
  • Fort Griswold Hill130 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, −19 ft at 41.3438° N, 72.0826° 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: 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.