Columbia County, OR Elevation & Topographic Map
Elevation
2,270 ft 690 m1,700 ft 520 m1,420 ft 430 m850 ft 260 m280 ft 85 m0 ft 0 m
Contours every 500 ft, bold every 2,500 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.
- County area
- Fades everything outside the official county boundary (US Census).
Elevation Data
Columbia County averages about 750 ft (230 m) above sea level across all its land. Its ground runs from 0 ft on the northwest side to 2,270 ft on Long Mountain.
Average elevation
750 ft 230 m
all land inside the county
Highest
2,270 ft 690 m
on Long Mountain
Lowest
0 ft 0 m
on the northwest side
Columbia County spans about 2,270 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 | 750 ft230 m |
| Highest point Inside the county, on Long Mountain (3DEP terrain model; no NGS survey height) | 2,270 ft690 m |
| Lowest point Inside the county, on the northwest side | 0 ft0 m |
Elevation profile, west to east
28 mi west to east through St. Helens.
Topographic Map
- Location
- County in Oregon, United States
- Population
- 54,063 2024 est.
- Land area
- 658.7 sq mi + 30.3 sq mi water
- Density
- 82 per sq mi
- Time zone
- Pacific UTC−8 / −7
- Landform region
- Pacific Border
- Drains to
- Pacific Ocean
⤓ Download this map
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
- Cowlitz County, WA1,340 ft
- Multnomah County1,010 ft
- Clatsop County830 ft
- Columbia County750 ft
- Washington County750 ft
- Clark County, WA720 ft
- Wahkiakum County, WA660 ft
Rankings by average elevation
- Counties in Oregon33rd highest of 36
- Counties in the United States1,919th highest of 3,151
Peaks and hills highest inside
- Long Mountain, Columbia County2,270 ft
- Buck Mountain, Columbia County2,130 ft
- Clatskanie Mountain2,090 ft
- Bunker Hill, Columbia County2,080 ft
- Tater Hill, Columbia County2,036 ft
All 9 towns in Columbia County by typical elevation
- Vernonia630 ft
- Rainier140 ft
- Warren140 ft
- St. Helens110 ft
- Columbia City93 ft
- Clatskanie89 ft
- Scappoose58 ft
- Prescott37 ft
- Deer Island21 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 1 arc-second (≈100 ft, 30 m) grid. Land means the boundary minus Census area water.
- Highest and lowest: the highest land cell; 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; 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, 0 ft at 46.1521° N, 123.1601° 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.