Gallatin County, IL Elevation & Topographic Map

Topographic elevation map of Gallatin County, Illinois, shaded from 330 ft on the south side to 920 ft on High Knob
Elevation
920 ft 280 m770 ft 235 m700 ft 215 m550 ft 170 m400 ft 120 m330 ft 100 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

Gallatin County averages about 390 ft (120 m) above sea level across all its land. Its ground runs from 330 ft on the south side to 920 ft on High Knob.

Average elevation
390 ft 120 m
all land inside the county
Highest
920 ft 280 m
on High Knob
Lowest
330 ft 100 m
on the south side

Gallatin County spans about 590 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 land390 ft120 m
Highest point
Inside the county, on High Knob (3DEP terrain model; no NGS survey height)
920 ft280 m
Lowest point
Inside the county, on the south side
330 ft100 m

Elevation profile, south to north

21 mi south to north through Gold Hill Township.

Topographic Map

Topographic elevation map of Gallatin County, Illinois, shaded from 330 ft on the south side to 920 ft on High Knob
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Illinois, United States
Population
4,690 2024 est.
Land area
322.9 sq mi + 5.2 sq mi water
Density
15 per sq mi
Time zone
Central UTC−6 / −5
Landform regions
Interior Low Plateaus 84%, Central Lowland 16%
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. Hardin County480 ft
  2. Hamilton County440 ft
  3. Saline County420 ft
  4. Posey County, IN410 ft
  5. White County400 ft
  6. Union County, KY400 ft
  7. Gallatin County390 ft

Rankings by average elevation

Peaks and hills highest inside

  • High Knob920 ft
  • Gold Hill690 ft
  • Maher Hill610 ft
All 17 towns in Gallatin County by typical elevation
  1. Bowlesville Township440 ft
  2. Shawneetown400 ft
  3. Gold Hill Township400 ft
  4. Equality400 ft
  5. Omaha Township390 ft
  6. Equality Township390 ft
  7. Omaha380 ft
  8. Asbury Township380 ft
  9. Eagle Creek Township380 ft
  10. New Haven Township380 ft
  11. New Haven380 ft
  12. North Fork Township380 ft
  13. Ridgway380 ft
  14. Ridgway Township380 ft
  15. Junction360 ft
  16. Shawnee Township350 ft
  17. Old Shawneetown350 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.
  • 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.