Greene County, IL Elevation & Topographic Map

Topographic elevation map of Greene County, Illinois, shaded from 410 ft on the southwest side to 720 ft on Witachek Mound
Elevation
720 ft 220 m650 ft 195 m610 ft 185 m530 ft 160 m450 ft 140 m410 ft 125 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

Greene County averages about 540 ft (165 m) above sea level across all its land. Its ground runs from 410 ft on the southwest side to 720 ft on Witachek Mound.

Average elevation
540 ft 165 m
all land inside the county
Highest
720 ft 220 m
on Witachek Mound
Lowest
410 ft 125 m
on the southwest side

Greene 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.

FigureElevation
Average of all land540 ft165 m
Highest point
Inside the county, on Witachek Mound (3DEP terrain model; no NGS survey height)
720 ft220 m
Lowest point
Inside the county, on the southwest side
410 ft125 m

Elevation profile, west to east

25 mi west to east through Carrollton Township.

Topographic Map

Topographic elevation map of Greene County, Illinois, shaded from 410 ft on the southwest side to 720 ft on Witachek Mound
County boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
County in Illinois, United States
Population
11,417 2024 est.
Land area
543.1 sq mi + 3.3 sq mi water
Density
21 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. Macoupin County630 ft
  2. Morgan County620 ft
  3. Pike County600 ft
  4. Jersey County580 ft
  5. Calhoun County570 ft
  6. Greene County540 ft
  7. Scott County540 ft

Rankings by average elevation

Peaks and hills highest inside

  • Witachek Mound720 ft
  • Spankey Hill690 ft
  • Zerby Hill670 ft
  • Shanks Hill610 ft
All 22 towns in Greene County by typical elevation
  1. Village of Wilmington670 ft
  2. Roodhouse660 ft
  3. Roodhouse Township660 ft
  4. Carrollton610 ft
  5. Patterson Township610 ft
  6. Carrollton Township600 ft
  7. Rubicon Township600 ft
  8. Greenfield580 ft
  9. Rockbridge Township580 ft
  10. White Hall Township570 ft
  11. White Hall570 ft
  12. Athensville Township570 ft
  13. Linder Township560 ft
  14. Woodville Township560 ft
  15. Walkerville Township560 ft
  16. Kane560 ft
  17. Kane Township560 ft
  18. Wrights Township550 ft
  19. Rockbridge540 ft
  20. Hillview500 ft
  21. Bluffdale Township490 ft
  22. Eldred450 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, 330 ft at 39.1926° N, 90.4246° 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.