Logan County, IL Elevation & Topographic Map

Topographic elevation map of Logan County, Illinois, shaded from 500 ft on the west side to 771 ft on Elkhart Hill
Elevation
770 ft 235 m700 ft 215 m670 ft 205 m600 ft 185 m540 ft 165 m500 ft 155 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

Logan County averages about 600 ft (180 m) above sea level across all its land. Its ground runs from 500 ft on the west side to 771 ft on Elkhart Hill.

Average elevation
600 ft 180 m
all land inside the county
Highest
771 ft 235 m
on Elkhart Hill
Lowest
500 ft 155 m
on the west side

Logan County spans about 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.

FigureElevation
Average of all land600 ft180 m
Highest point
Inside the county, on Elkhart Hill (NGS survey height)
771 ft235 m
Lowest point
Inside the county, on the west side
500 ft155 m

Elevation profile, south to north

28 mi south to north through Lincoln.

Topographic Map

Topographic elevation map of Logan County, Illinois, shaded from 500 ft on the west side to 771 ft on Elkhart Hill
County boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
County in Illinois, United States
Population
27,518 2024 est.
Land area
618.1 sq mi + 0.9 sq mi water
Density
45 per sq mi
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
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. McLean County770 ft
  2. De Witt County720 ft
  3. Macon County670 ft
  4. Tazewell County620 ft
  5. Sangamon County600 ft
  6. Logan County600 ft
  7. Menard County580 ft
  8. Mason County510 ft

Rankings by average elevation

Peaks and hills highest inside

  • Elkhart Hill771 ft
  • Walnut Hill650 ft
  • Polecat Hill610 ft
  • Lockenauer Hill590 ft
  • Pool Hill590 ft
All 31 towns in Logan County by typical elevation
  1. Atlanta720 ft
  2. Atlanta Township710 ft
  3. Eminence Township660 ft
  4. Mount Pulaski650 ft
  5. Mount Pulaski Township640 ft
  6. Beason640 ft
  7. Oran Township640 ft
  8. Chestnut620 ft
  9. Aetna Township620 ft
  10. Laenna Township620 ft
  11. Latham610 ft
  12. Lake Fork Township600 ft
  13. Cornland600 ft
  14. San Jose partly600 ft
  15. Hartsburg600 ft
  16. Elkhart Township600 ft
  17. Hurlbut Township590 ft
  18. Elkhart590 ft
  19. Chester Township590 ft
  20. Orvil Township590 ft
  21. East Lincoln Township590 ft
  22. Emden590 ft
  23. Lincoln590 ft
  24. Broadwell Township590 ft
  25. West Lincoln Township590 ft
  26. Prairie Creek Township580 ft
  27. Broadwell580 ft
  28. Middletown580 ft
  29. Corwin Township580 ft
  30. Sheridan Township550 ft
  31. New Holland550 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.