Sudden Valley, WA Elevation & Topographic Map

Topographic elevation map of Sudden Valley, Washington, shaded from 310 ft on the east side to 1,300 ft on the south edge, below higher ground just outside
Elevation
1,300 ft 395 m1,050 ft 320 m930 ft 285 m680 ft 205 m430 ft 130 m310 ft 95 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.
Area
Fades everything outside the official CDP boundary (US Census).

Elevation Data

Sudden Valley sits at about 520 ft (155 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
520 ft 155 m
most residents: 370–700 ft
Lowest
310 ft 95 m
on the east side
Highest
1,300 ft 395 m
on the south edge, below higher ground just outside
Average
520 ft 160 m
all land inside the CDP boundary

Sudden Valley spans about 990 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
520 ft155 m
Highest point
Inside the CDP boundary, on the south edge, below higher ground just outside
1,300 ft395 m
Lowest point
Inside the CDP boundary, on the east side
310 ft95 m
Town center
USGS map point for Sudden Valley
680 ft205 m
Airport (BLI)
FAA airport elevation, the highest point of its runways, 7.3 mi northwest of the CDP boundary
171 ft52 m
Average of all land520 ft160 m
Nearest peak
Lookout Mountain, Whatcom County, 1.2 mi south of the CDP boundary
2,670 ft815 m

Elevation profile, south to north

2.4 mi south to north through the town center.

Topographic Map

Topographic elevation map of Sudden Valley, Washington, shaded from 310 ft on the east side to 1,300 ft on the south edge, below higher ground just outside
CDP boundary (dashed) over shaded terrain, with contours every 100 ft (30 m).
Location
Unincorporated community (census-designated place) in Whatcom County, Washington, United States
Population
6,354 2020 Census
Land area
4.3 sq mi + 1.8 sq mi water
Density
1,485 per sq mi
Coordinates
48.7229° N, 122.3466° W
Time zone
Pacific UTC−8 / −7
Landform region
Pacific Border
Drains to
Strait of Juan de Fuca
Airport
Bellingham International (BLI) 171 ft
ZIP codes 1
98229
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Sources: U.S. Census Bureau, USGS, FAA

Nearby Places

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.
  • Sudden Valley 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. All public domain.