Lewis County, WA Elevation & Topographic Map
Elevation
8,010 ft 2,440 m6,020 ft 1,835 m5,030 ft 1,535 m3,040 ft 925 m1,050 ft 320 m59 ft 18 m
Zoom in for contour lines
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.
- County area
- Fades everything outside the official county boundary (US Census).
Elevation Data
Lewis County averages about 1,920 ft (585 m) above sea level across all its land. Its ground runs from 59 ft on the southwest side to 8,010 ft on Goat Rocks.
Average elevation
1,920 ft 585 m
all land inside the county
Highest
8,010 ft 2,440 m
on Goat Rocks
Lowest
59 ft 18 m
on the southwest side
Lewis County spans about 7,951 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.
| Figure | Elevation |
|---|---|
| Average of all land | 1,920 ft585 m |
| Highest point Inside the county, on Goat Rocks (3DEP terrain model; no NGS survey height) | 8,010 ft2,440 m |
| Lowest point Inside the county, on the southwest side | 59 ft18 m |
Elevation profile, west to east
95 mi west to east through Centralia.
Topographic Map
- Location
- County in Washington, United States
- Population
- 87,049 2024 est.
- Land area
- 2,402.8 sq mi + 33.6 sq mi water
- Density
- 36 per sq mi
- Time zone
- Pacific UTC−8 / −7
- Landform regions
- Cascade-sierra Mountains 58%, Pacific Border 42%
- Drains to
- Pacific Ocean 96%
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WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.
Sources: U.S. Census Bureau, USGS
Nearby Places
Neighboring counties sharing a border, by average
- Skamania County2,900 ft
- Yakima County2,840 ft
- Pierce County2,220 ft
- Lewis County1,920 ft
- Cowlitz County1,340 ft
- Wahkiakum County660 ft
- Pacific County560 ft
- Grays Harbor County510 ft
- Thurston County480 ft
Rankings by average elevation
- Counties in Washington22nd highest of 39
- Counties in the United States647th highest of 3,151
Peaks and hills highest inside
- Unicorn Peak6,930 ft
- Lakeview Mountain6,660 ft
- South Point5,984 ft
- Hamilton Buttes5,740 ft
- Sawtooth Ridge5,620 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 2 arc-second (≈200 ft, 62 m) grid, coarsened from 1 arc-second so the whole area fits one run. Land means the boundary minus Census area water (on this grid, water areas of at least half a cell).
- Highest and lowest: the highest land cell, re-read at 1 arc-second around the 25 highest grid cells; it is a named summit, so its height is the peak method: the 3DEP top on a ~7 ft (2 m) window, or the NGS published height when a survey mark sits within 160 ft (50 m) of it. Lowest: the lowest land cell, re-read at 1 arc-second around the 25 lowest grid cells; 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, 59 ft at 46.3888° N, 122.9321° W, is in such a hollow or patch and is not counted.
- 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.