SeaTac, WA Elevation & Topographic Map

Topographic elevation map of SeaTac, Washington, shaded from 30 ft on the southeast side to 510 ft on the east side
Elevation
510 ft 155 m390 ft 120 m330 ft 100 m210 ft 65 m90 ft 28 m30 ft 9 m
Contours every 200 ft, bold every 1,000 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.
City area
Fades everything outside the official city limits (US Census).

Elevation Data

SeaTac sits at about 400 ft (120 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
400 ft 120 m
most residents: 330–460 ft
Lowest
30 ft 9 m
on the southeast side
Highest
510 ft 155 m
on the east side
Average
370 ft 110 m
all land inside city limits

SeaTac spans about 480 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
400 ft120 m
Highest point
Inside city limits, on the east side
510 ft155 m
Lowest point
Inside city limits, on the southeast side
30 ft9 m
Town center
USGS map point for SeaTac
260 ft80 m
Airport (SEA)
FAA airport elevation, the highest point of its runways
432 ft132 m
Average of all land370 ft110 m

Elevation profile, west to east

2.7 mi west to east through the town center.

Topographic Map

Topographic elevation map of SeaTac, Washington, shaded from 30 ft on the southeast side to 510 ft on the east side
City limits (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
City in King County, Washington, United States
Population
34,024 2024 est.
Land area
10.1 sq mi + 0.2 sq mi water
Density
3,381 per sq mi
Coordinates
47.4537° N, 122.3218° W
Time zone
Pacific UTC−8 / −7
Landform region
Pacific Border
Drains to
Strait of Juan de Fuca
Airport
Seattle-tacoma International (SEA) 432 ft
ZIP codes 5
98148 98158 98168 98188 98198
⤓ 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

How we measure
  • Typical elevation: the population-weighted median: every 2020 Census block inside the city limits, 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 city limits (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.
  • 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; NOAA NGS survey heights. All public domain.