Greenwich, CT Elevation & Topographic Map

Topographic elevation map of Greenwich, Connecticut, shaded from sea level level on Byram Harbor to 580 ft on the north side
Elevation
580 ft 175 m440 ft 135 m360 ft 110 m220 ft 65 m73 ft 22 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.
Town area
Fades everything outside the official town boundaries (US Census).

Elevation Data

Greenwich sits at about 78 ft (24 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
78 ft 24 m
most residents: 19–260 ft
Lowest
0 ft 0 m
at sea level on Byram Harbor
Highest
580 ft 175 m
on the north side
Average
240 ft 75 m
all land inside town boundaries

Greenwich spans about 580 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
78 ft24 m
Highest point
Inside town boundaries, on the north side
580 ft175 m
Lowest point
Where the land meets Byram Harbor
0 ft0 m
Town center
USGS map point for Greenwich
97 ft29 m
Airport (HPN)
FAA airport elevation, the highest point of its runways, 0.3 mi northwest of the town boundaries
439 ft134 m
Average of all land240 ft75 m

Elevation profile, south to north

12 mi south to north through the town center.

Topographic Map

Topographic elevation map of Greenwich, Connecticut, shaded from sea level level on Byram Harbor to 580 ft on the north side
Town boundaries (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
Town in Fairfield County, Connecticut, United States
Population
64,594 2024 est.
Land area
47.7 sq mi + 19.6 sq mi water
Density
1,354 per sq mi
Coordinates
41.0265° N, 73.6285° W
Time zone
Eastern UTC−5 / −4
Landform region
New England
Drains to
Long Island Sound
Airport
Westchester County (HPN) 439 ft
ZIP codes 5
06807 06830 06831 06870 06878
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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. Armonk, NY470 ft
  2. White Plains, NY240 ft
  3. Scarsdale, NY240 ft
  4. Rye Brook, NY180 ft
  5. Harrison, NY170 ft
  6. Rye, NY81 ft
  7. Port Chester, NY79 ft
  8. Greenwich78 ft
  9. Mamaroneck, NY45 ft
  10. Village of Mamaroneck, NY40 ft
  11. City of Rye, NY37 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Mount Don Bosco2,290 ft
  • South Beacon Mountain1,600 ft
  • Round Hill, Fairfield County565 ft
  • Palmer Hill220 ft
  • Rhode Island Rocks88 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, −5 ft at 40.9865° N, 73.6576° 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.