Islandia, NY Elevation & Topographic Map
Elevation
210 ft 65 m170 ft 50 m150 ft 45 m100 ft 30 m58 ft 18 m36 ft 11 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.
- Village area
- Fades everything outside the official village limits (US Census).
Elevation Data
Islandia sits at about 74 ft (23 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
74 ft 23 m
most residents: 56–130 ft
Lowest
36 ft 11 m
on the east side
Highest
210 ft 65 m
on the northwest side
Average
87 ft 26 m
all land inside village limits
Islandia spans about 174 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 | 74 ft23 m |
| Highest point Inside village limits, on the northwest side | 210 ft65 m |
| Lowest point Inside village limits, on the east side | 36 ft11 m |
| Town center USGS map point for Islandia | 56 ft17 m |
| Airport (ISP) FAA airport elevation, the highest point of its runways, 2.7 mi east of the village limits | 99 ft30 m |
| Average of all land | 87 ft26 m |
Elevation profile, south to north
1.1 mi south to north through the town center.
Topographic Map
- Location
- Village in Suffolk County, New York, United States
- Population
- 3,651 2024 est.
- Land area
- 2.2 sq mi
- Density
- 1,649 per sq mi
- Coordinates
- 40.8043° N, 73.1690° 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 1
- 11749
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Smithtown120 ft
- Lake Ronkonkoma110 ft
- Nesconset100 ft
- Ronkonkoma91 ft
- Hauppauge82 ft
- Islandia74 ft
- Central Islip68 ft
- Village of the Branch56 ft
- Bohemia55 ft
- North Great River40 ft
- Islip Terrace31 ft
Rankings by typical elevation
- Towns in New York1,906th highest of 2,097
- Towns in Suffolk County57th highest of 162
Peaks and hills nearest, by height
- South Beacon Mountain1,600 ft
- Dix Hills350 ft
- Signal Hill, Suffolk County320 ft
- Half Hollow Hills260 ft
- Mount Misery, Suffolk County180 ft
How we measure
- Typical elevation: the population-weighted median: every 2020 Census block inside the village 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 village limits (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); FAA airport data; BTS time zones. All public domain.