Fire Island, NY Elevation & Topographic Map
Elevation
33 ft 10 m25 ft 8 m21 ft 6 m12 ft 4 m4 ft 1 m0 ft 0 m
Contours every 500 ft, bold every 2,500 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
Fire Island sits at about 4 ft (1 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
4 ft 1 m
most residents: 3–12 ft
Lowest
0 ft 0 m
at sea level on Great South Bay
Highest
30 ft 9 m
on the east side
Average
5 ft 2 m
all land inside the CDP boundary
Fire Island spans about 30 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 | 4 ft1 m |
| Highest point Inside the CDP boundary, on the east side | 30 ft9 m |
| Lowest point Where the land meets Great South Bay | 0 ft0 m |
| Town center USGS map point for Fire Island | 4 ft1 m |
| Airport (ISP) FAA airport elevation, the highest point of its runways, 8.8 mi north of the CDP boundary | 99 ft30 m |
| Average of all land | 5 ft2 m |
Topographic Map
- Location
- Unincorporated community (census-designated place) in Suffolk County, New York, United States
- Population
- 777 2020 Census
- Land area
- 9.2 sq mi + 29.1 sq mi water
- Density
- 85 per sq mi
- Coordinates
- 40.6476° N, 73.1459° W
- Time zone
- Eastern UTC−5 / −4
- Drains to
- Atlantic Ocean
- Airport
- Long Island Mac Arthur (ISP) 99 ft
- ZIP codes 5
- 11702 11706 11770 11772 11782
⤓ 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
- Islip52 ft
- Islip Terrace31 ft
- Sayville29 ft
- West Sayville20 ft
- East Islip19 ft
- Great River16 ft
- Oakdale8 ft
- Fire Island4 ft
- Ocean Beach3 ft
- Saltaire3 ft
- Captree1 ft
Rankings by typical elevation
- Towns in New York2,092nd highest of 2,097
- Towns in Suffolk County157th highest of 162
Peaks and hills nearest, by height
- Dix Hills350 ft
- Bald Hill, Suffolk County294 ft
- Rock Hill, Suffolk County260 ft
- Half Hollow Hills260 ft
- Flanders Hill240 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).
- 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, −2 ft at 40.6243° N, 73.2446° 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.
- Fire Island is an unincorporated community; figures cover the census-designated place, a statistical area.
- Sources: USGS 3DEP, GNIS and Watershed Boundary Dataset; U.S. Census Bureau (boundaries, 2020 blocks, Gazetteer areas, ZIP code areas); FAA airport data; BTS time zones; NOAA NGS survey heights. All public domain.