Lake Cassidy, WA Elevation & Topographic Map

Topographic elevation map of Lake Cassidy, Washington, shaded from 59 ft on the west side to 470 ft on the southwest side
Elevation
470 ft 145 m370 ft 115 m320 ft 95 m210 ft 65 m110 ft 35 m59 ft 18 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

Lake Cassidy sits at about 370 ft (110 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
370 ft 110 m
most residents: 260–420 ft
Lowest
59 ft 18 m
on the west side
Highest
470 ft 145 m
on the southwest side
Average
350 ft 110 m
all land inside the CDP boundary

Lake Cassidy spans about 411 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
370 ft110 m
Highest point
Inside the CDP boundary, on the southwest side
470 ft145 m
Lowest point
Inside the CDP boundary, on the west side
59 ft18 m
Airport (PAE)
FAA airport elevation, the highest point of its runways, 12 mi southwest of the CDP boundary
607 ft185 m
Average of all land350 ft110 m
Nearest peak
Blue Mountain, Snohomish County, 9.1 mi northeast of the CDP boundary
3,030 ft925 m

Elevation profile, south to north

4.5 mi south to north through the middle of Lake Cassidy.

Topographic Map

Topographic elevation map of Lake Cassidy, Washington, shaded from 59 ft on the west side to 470 ft on the southwest side
CDP boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
Unincorporated community (census-designated place) in Snohomish County, Washington, United States
Population
3,757 2020 Census
Land area
10.6 sq mi + 0.2 sq mi water
Density
355 per sq mi
Coordinates
48.0711° N, 122.0962° W
Time zone
Pacific UTC−8 / −7
Landform region
Pacific Border
Drains to
Strait of Juan de Fuca
Airport
Seattle Paine Field International (PAE) 607 ft
ZIP codes 3
98223 98258 98270
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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.
  • Lake Cassidy 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.