Portsmouth, RI Elevation & Topographic Map
Elevation
280 ft 85 m210 ft 65 m180 ft 55 m110 ft 35 m36 ft 11 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.
- Town area
- Fades everything outside the official town boundaries (US Census).
Elevation Data
Portsmouth sits at about 110 ft (35 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
110 ft 35 m
most residents: 15–230 ft
Lowest
0 ft 0 m
at sea level on Narragansett Bay
Highest
280 ft 85 m
on Quaker Hill
Average
100 ft 30 m
all land inside town boundaries
Portsmouth spans about 280 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 | 110 ft35 m |
| Highest point Inside town boundaries, on Quaker Hill | 280 ft85 m |
| Lowest point Where the land meets Narragansett Bay | 0 ft0 m |
| Town center USGS map point for Portsmouth | 140 ft40 m |
| Airport (PVD) FAA airport elevation, the highest point of its runways, 4.8 mi northwest of the town boundaries | 54 ft16 m |
| Average of all land | 100 ft30 m |
Elevation profile, south to north
8.0 mi south to north through the town center.
Topographic Map
- Location
- Town in Newport County, Rhode Island, United States
- Population
- 17,391 2024 est.
- Land area
- 23.0 sq mi + 36.3 sq mi water
- Density
- 755 per sq mi
- Coordinates
- 41.6023° N, 71.2503° W
- Time zone
- Eastern UTC−5 / −4
- Landform region
- New England
- Drains to
- Atlantic Ocean
- Airport
- Rhode Island Tf Green International (PVD) 54 ft
- ZIP codes 2
- 02871 02872
⤓ 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
- Tiverton180 ft
- Fall River, MA180 ft
- Westport, MA130 ft
- Portsmouth110 ft
- Middletown100 ft
- Newport East96 ft
- Melville92 ft
- Little Compton74 ft
- Bristol61 ft
- Newport45 ft
- Warren21 ft
Rankings by typical elevation
- Towns in Rhode Island34th highest of 63
- Towns in Newport County2nd highest of 8
Peaks and hills nearest, by height
- Quaker Hill280 ft
- Almy Hill230 ft
- Butts Hill200 ft
- Lehigh Hill170 ft
- Pine Hill, Newport County69 ft
How we measure
- Typical elevation: the population-weighted median: every 2020 Census block inside the town boundaries, 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 town boundaries (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, −3 ft at 41.6501° N, 71.3440° 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.
- 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.