City of Groton, CT Elevation & Topographic Map

Topographic elevation map of City of Groton, Connecticut, shaded from sea level level on Winthrop Cove to 160 ft on the north side
Elevation
160 ft 50 m120 ft 35 m98 ft 30 m59 ft 18 m20 ft 6 m0 ft 0 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.
City area
Fades everything outside the official city limits (US Census).

Elevation Data

City of Groton sits at about 76 ft (23 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
76 ft 23 m
most residents: 32–110 ft
Lowest
0 ft 0 m
at sea level on Winthrop Cove
Highest
160 ft 50 m
on the north side
Average
61 ft 19 m
all land inside city limits

City of Groton spans about 160 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
76 ft23 m
Highest point
Inside city limits, on the north side
160 ft50 m
Lowest point
Where the land meets Winthrop Cove
0 ft0 m
Town center
USGS map point for City of Groton
78 ft24 m
Airport (WST)
FAA airport elevation, the highest point of its runways, 13 mi east of the city limits
81 ft25 m
Average of all land61 ft19 m

Elevation profile, south to north

4.8 mi south to north through the town center.

Topographic Map

Topographic elevation map of City of Groton, Connecticut, shaded from sea level level on Winthrop Cove to 160 ft on the north side
City limits (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
City in New London County, Connecticut, United States
Population
10,160 2024 est.
Land area
3.1 sq mi + 3.7 sq mi water
Density
3,295 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 1
06340
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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. City of Groton76 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

  • Jacobs Rock250 ft
  • Starr Hill240 ft
  • Averys Hill150 ft
  • Long Hill, New London County148 ft
  • Fort Griswold Hill130 ft
How we measure
  • Typical elevation: the population-weighted median: every 2020 Census block inside the city limits, 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 city limits (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.