Barnwell County, SC Elevation & Topographic Map
Elevation
390 ft 120 m310 ft 95 m270 ft 85 m200 ft 60 m120 ft 35 m80 ft 24 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
Barnwell County averages about 240 ft (70 m) above sea level across all its land. Its ground runs from 80 ft on the southwest side to 390 ft on the north side.
Average elevation
240 ft 70 m
all land inside the county
Highest
390 ft 120 m
on the north side
Lowest
80 ft 24 m
on the southwest side
Barnwell County spans about 310 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 | 240 ft70 m |
| Highest point Inside the county, on the north side | 390 ft120 m |
| Lowest point Inside the county, on the southwest side | 80 ft24 m |
Elevation profile, south to north
26 mi south to north through Barnwell.
Topographic Map
- Location
- County in South Carolina, United States
- Population
- 20,495 2024 est.
- Land area
- 548.4 sq mi + 8.9 sq mi water
- Density
- 37 per sq mi
- Time zone
- Eastern UTC−5 / −4
- Landform region
- Coastal Plain
- Drains to
- Atlantic 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
- Aiken County370 ft
- Burke County, GA260 ft
- Barnwell County240 ft
- Orangeburg County180 ft
- Bamberg County160 ft
- Allendale County150 ft
Rankings by average elevation
- Counties in South Carolina24th highest of 46
- Counties in the United States2,721st highest of 3,151
Peaks and hills highest inside
- Barnwell Hill, Barnwell County230 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. Lowest: the lowest land cell; coastal ground within 3 ft (1 m) of named tidal water counts as sea level.
- 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.