Humboldt County, CA Elevation & Topographic Map
Elevation
6,960 ft 2,120 m5,220 ft 1,590 m4,350 ft 1,325 m2,610 ft 795 m870 ft 265 m0 ft 0 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
Humboldt County averages about 1,730 ft (525 m) above sea level across all its land. Its ground runs from sea level on the Pacific Ocean to 6,962 ft on Salmon Mountain.
Average elevation
1,730 ft 525 m
all land inside the county
Highest
6,962 ft 2,122 m
on Salmon Mountain
Lowest
0 ft 0 m
at sea level on the Pacific Ocean
Humboldt County spans about 6,960 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 | 1,730 ft525 m |
| Highest point Inside the county, on Salmon Mountain (NGS survey height) | 6,962 ft2,122 m |
| Lowest point Where the land meets the Pacific Ocean | 0 ft0 m |
Elevation profile, west to east
38 mi west to east through Eureka.
Topographic Map
- Location
- County in California, United States
- Population
- 132,380 2024 est.
- Land area
- 3,568.0 sq mi + 484.2 sq mi water
- Density
- 37 per sq mi
- Time zone
- Pacific UTC−8 / −7
- Landform region
- Pacific Border 99%
- Drains to
- Pacific Ocean
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Sources: U.S. Census Bureau, USGS
Nearby Places
Neighboring counties sharing a border, by average
- Siskiyou County4,260 ft
- Trinity County3,810 ft
- Del Norte County2,150 ft
- Mendocino County1,790 ft
- Humboldt County1,730 ft
Rankings by average elevation
- Counties in California33rd highest of 57
- Counties in the United States717th highest of 3,151
Peaks and hills highest inside
- Salmon Mountain6,962 ft
- North Trinity Mountain6,340 ft
- Orleans Mountain6,160 ft
- Trinity Mountain6,097 ft
- Blake Mountain5,909 ft
All 40 towns in Humboldt County by typical elevation
- Weitchpec1,030 ft
- Wautec820 ft
- Benbow760 ft
- Kep'el760 ft
- Willow Creek590 ft
- Garberville540 ft
- Alderpoint480 ft
- Redway460 ft
- Hoopa400 ft
- Redcrest380 ft
- Hydesville380 ft
- Miranda360 ft
- Westhaven-Moonstone340 ft
- Shelter Cove340 ft
- Weott260 ft
- Phillipsville240 ft
- Fieldbrook210 ft
- Pine Hills210 ft
- Cutten190 ft
- Myers Flat190 ft
- Humboldt Hill170 ft
- Scotia160 ft
- Trinidad160 ft
- Rio Dell130 ft
- McKinleyville130 ft
- Blue Lake110 ft
- Fortuna110 ft
- Bayview110 ft
- Myrtletown99 ft
- Indianola83 ft
- Eureka75 ft
- Loleta69 ft
- Big Lagoon54 ft
- Ferndale44 ft
- Arcata40 ft
- Orick37 ft
- Samoa29 ft
- Manila18 ft
- Fairhaven12 ft
- Fields Landing7 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, −7 ft at 40.7687° N, 124.2026° 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: 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.