Greenlawn, NY Elevation & Topographic Map
Elevation
290 ft 90 m220 ft 65 m180 ft 55 m110 ft 35 m42 ft 13 m7 ft 2 m
Contours every 100 ft, bold every 500 ft
USGS 3DEP · U.S. Census Bureau
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.
- Area
- Fades everything outside the official CDP boundary (US Census).
Elevation Data
Greenlawn sits at about 210 ft (65 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
210 ft 65 m
most residents: 190–240 ft
Lowest
7 ft 2 m
on the north side
Highest
290 ft 90 m
on the southeast side
Average
210 ft 65 m
all land inside the CDP boundary
Greenlawn spans about 283 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.
| Figure | Elevation |
|---|---|
| Typical Where people live: half of residents higher, half lower | 210 ft65 m |
| Highest point Inside the CDP boundary, on the southeast side | 290 ft90 m |
| Lowest point Inside the CDP boundary, on the north side | 7 ft2 m |
| Town center USGS map point for Greenlawn | 220 ft70 m |
| Airport (ISP) FAA airport elevation, the highest point of its runways, 13 mi east of the CDP boundary | 99 ft30 m |
| Average of all land | 210 ft65 m |
Elevation profile, south to north
2.4 mi south to north through the town center.
Topographic Map
- Location
- Unincorporated community (census-designated place) in Suffolk County, New York, United States
- Population
- 13,661 2020 Census
- Land area
- 3.8 sq mi
- Density
- 3,571 per sq mi
- Coordinates
- 40.8690° N, 73.3651° W
- Time zone
- Eastern UTC−5 / −4
- Landform region
- Coastal Plain
- Drains to
- Atlantic Ocean
- Airport
- Long Island Mac Arthur (ISP) 99 ft
- ZIP codes 2
- 11740 11743
⤓ Download this map
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Greenlawn210 ft
- East Northport200 ft
- South Huntington190 ft
- Huntington Station190 ft
- Elwood190 ft
- Huntington180 ft
- Northport130 ft
- Centerport120 ft
- Halesite89 ft
- Huntington Bay67 ft
- Asharoken18 ft
Rankings by typical elevation
- Towns in New York1,670th highest of 2,097
- Towns in Suffolk Countyhighest of 162
Peaks and hills nearest, by height
- South Beacon Mountain1,600 ft
- High Hill, Suffolk County390 ft
- Dix Hills350 ft
- Signal Hill, Suffolk County320 ft
- Half Hollow Hills260 ft
How we measure
- Typical elevation: the population-weighted median: every 2020 Census block inside the CDP boundary, 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 CDP boundary (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.
- Greenlawn is an unincorporated community; figures cover the census-designated place, a statistical area.
- Sources: USGS 3DEP, GNIS, Watershed Boundary Dataset and physiographic provinces; U.S. Census Bureau (boundaries, 2020 blocks, Gazetteer areas, ZIP code areas); FAA airport data; BTS time zones. All public domain.