Gallia County, OH Elevation & Topographic Map

Topographic elevation map of Gallia County, Ohio, shaded from 520 ft on the southeast side to 1,050 ft on the south side
Elevation
1,050 ft 320 m920 ft 280 m850 ft 260 m720 ft 220 m580 ft 180 m520 ft 160 m
Contours every 500 ft, bold every 2,500 ft
USGS 3DEP · U.S. Census Bureau
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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

Gallia County averages about 730 ft (225 m) above sea level across all its land. Its ground runs from 520 ft on the southeast side to 1,050 ft on the south side.

Average elevation
730 ft 225 m
all land inside the county
Highest
1,050 ft 320 m
on the south side
Lowest
520 ft 160 m
on the southeast side

Gallia County spans about 530 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.

FigureElevation
Average of all land730 ft225 m
Highest point
Inside the county, on the south side
1,050 ft320 m
Lowest point
Inside the county, on the southeast side
520 ft160 m

Elevation profile, south to north

29 mi south to north through Green Township, Gallia County.

Topographic Map

Topographic elevation map of Gallia County, Ohio, shaded from 520 ft on the southeast side to 1,050 ft on the south side
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Ohio, United States
Population
28,886 2024 est.
Land area
466.5 sq mi + 4.7 sq mi water
Density
62 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
Appalachian Plateaus
Drains to
Gulf of America
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Vinton County840 ft
  2. Jackson County780 ft
  3. Cabell County, WV770 ft
  4. Lawrence County760 ft
  5. Meigs County750 ft
  6. Mason County, WV730 ft
  7. Gallia County730 ft

Rankings by average elevation

  • Counties in Ohio80th highest of 88
  • Counties in the United States1,958th highest of 3,151

Peaks and hills highest inside

  • Poplar Knob, Gallia County1,010 ft
  • Prospect Hill, Gallia County920 ft
  • Big Four Hill880 ft
  • Pigeon Knob870 ft
  • Fortification Hill860 ft
All 23 towns in Gallia County by typical elevation
  1. Walnut Township, Gallia County800 ft
  2. Greenfield Township, Gallia County790 ft
  3. Harrison Township, Gallia County790 ft
  4. Ohio Township, Gallia County780 ft
  5. Morgan Township, Gallia County760 ft
  6. Guyan Township750 ft
  7. Perry Township, Gallia County740 ft
  8. Huntington Township, Gallia County730 ft
  9. Clay Township, Gallia County730 ft
  10. Cheshire Township730 ft
  11. Springfield Township, Gallia County700 ft
  12. Bidwell700 ft
  13. Green Township, Gallia County690 ft
  14. Addison Township690 ft
  15. Vinton680 ft
  16. Centerville (Thurman)670 ft
  17. Raccoon Township670 ft
  18. Rio Grande650 ft
  19. Gallipolis Township580 ft
  20. Cheshire580 ft
  21. Gallipolis580 ft
  22. Crown City570 ft
  23. Kanauga570 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.