Washington County, RI Elevation & Topographic Map

Topographic elevation map of Washington County, Rhode Island, shaded from sea level on the Atlantic Ocean to 570 ft on the north side
Elevation
570 ft 170 m420 ft 130 m350 ft 110 m210 ft 65 m71 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.
County area
Fades everything outside the official county boundary (US Census).

Elevation Data

Washington County averages about 150 ft (45 m) above sea level across all its land. Its ground runs from sea level on the Atlantic Ocean to 570 ft on the north side.

Average elevation
150 ft 45 m
all land inside the county
Highest
570 ft 170 m
on the north side
Lowest
0 ft 0 m
at sea level on the Atlantic Ocean

Washington County spans about 570 ft of height, so no single spot tells the whole story. The ruler shows where most of its land lies, and where the other numbers you'll see come from.

FigureElevation
Average of all land150 ft45 m
Highest point
Inside the county, on the north side
570 ft170 m
Lowest point
Where the land meets the Atlantic Ocean
0 ft0 m

Elevation profile, south to north

34 mi south to north through South Kingstown.

Topographic Map

Topographic elevation map of Washington County, Rhode Island, shaded from sea level on the Atlantic Ocean to 570 ft on the north side
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Rhode Island, United States
Population
130,333 2024 est.
Land area
329.3 sq mi + 233.5 sq mi water
Density
396 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
New England 94%
Drains to
Long Island Sound 54%, Atlantic Ocean 46%
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Kent County290 ft
  2. New London County, CT250 ft
  3. Washington County150 ft
  4. Newport County96 ft
  5. Suffolk County, NY73 ft

Rankings by average elevation

Peaks and hills highest inside

  • Pine Hill, Washington County545 ft
  • Tefft Hill, Washington County510 ft
  • Casey Hill460 ft
  • Dye Hill450 ft
  • Shrub Hill440 ft
All 21 towns in Washington County by typical elevation
  1. Exeter260 ft
  2. Richmond160 ft
  3. Kingston130 ft
  4. Hopkinton130 ft
  5. Wyoming130 ft
  6. Hope Valley120 ft
  7. South Kingstown110 ft
  8. Charlestown93 ft
  9. Carolina87 ft
  10. Wakefield-Peace Dale69 ft
  11. Westerly65 ft
  12. Ashaway65 ft
  13. New Shoreham62 ft
  14. Bradford60 ft
  15. North Kingstown51 ft
  16. Narragansett Pier43 ft
  17. Narragansett35 ft
  18. Watch Hill14 ft
  19. Weekapaug13 ft
  20. Quonochontaug12 ft
  21. Misquamicut11 ft
How we measure
  • Average: every USGS 3DEP bare-earth cell of land inside the Census county boundary (TIGER/Line, Jan 1 2026), weighted equally, on a 1 arc-second (≈100 ft, 30 m) grid. Land means the boundary minus Census area water.
  • Highest and lowest: the highest land cell. Lowest: the lowest land cell; coastal ground within 3 ft (1 m) of named tidal water counts as sea level.
  • 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, −7 ft at 41.3601° N, 71.4982° 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: neighboring counties and rankings use each one's average elevation, on its own grid, the same figure its page shows. Peaks and hills: the highest summits inside the county with at least 980 ft (300 m) of prominence, then the highest federal (GNIS) summits inside it 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).
  • Towns: each town's typical elevation (population-weighted median of its own 2020 blocks at 1 arc-second); a town is listed when any of its 2020 residents live in the county.
  • 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 (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 (TIGER boundaries and water, 2020 blocks, 2024 population estimates, county adjacency); NOAA NGS survey heights; BTS time zones. All public domain.