Riverside, NY Elevation & Topographic Map

Topographic elevation map of Riverside, New York, shaded from 1 ft on the northeast side to 110 ft on the southwest side
Elevation
110 ft 35 m86 ft 26 m72 ft 22 m44 ft 13 m15 ft 5 m1 ft 0 m
Contours every 100 ft, bold every 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.
Area
Fades everything outside the official CDP boundary (US Census).

Elevation Data

Riverside sits at about 18 ft (5 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
18 ft 5 m
most residents: 7–21 ft
Lowest
1 ft 0 m
on the northeast side
Highest
110 ft 35 m
on the southwest side
Average
19 ft 6 m
all land inside the CDP boundary

Riverside spans about 109 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
18 ft5 m
Highest point
Inside the CDP boundary, on the southwest side
110 ft35 m
Lowest point
Inside the CDP boundary, on the northeast side
1 ft0 m
Airport (FOK)
FAA airport elevation, the highest point of its runways, 3.8 mi south of the CDP boundary
66 ft20 m
Average of all land19 ft6 m

Elevation profile, south to north

0.8 mi south to north through the middle of Riverside.

Topographic Map

Topographic elevation map of Riverside, New York, shaded from 1 ft on the northeast side to 110 ft on the southwest side
CDP boundary (dashed) over shaded terrain, with contours every 10 ft (3 m).
Location
Unincorporated community (census-designated place) in Suffolk County, New York, United States
Population
2,882 2020 Census
Land area
2.6 sq mi + 0.1 sq mi water
Density
1,089 per sq mi
Coordinates
40.9094° N, 72.6614° W
Time zone
Eastern UTC−5 / −4
Landform region
Coastal Plain
Drains to
Atlantic Ocean
Airport
Francis S Gabreski (FOK) 66 ft
ZIP codes 1
11901
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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. Baiting Hollow120 ft
  2. Calverton54 ft
  3. Northville50 ft
  4. Riverhead40 ft
  5. Westhampton31 ft
  6. Northampton, Suffolk County31 ft
  7. Aquebogue26 ft
  8. East Quogue24 ft
  9. Flanders18 ft
  10. Riverside18 ft
  11. Jamesport17 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Bald Hill, Suffolk County294 ft
  • Rock Hill, Suffolk County260 ft
  • Flanders Hill240 ft
  • Mattituck Hills160 ft
  • Jacobs Hill, Suffolk County130 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.
  • Riverside 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; NOAA NGS survey heights. All public domain.