Hancock County, IL Elevation & Topographic Map

Topographic elevation map of Hancock County, Illinois, shaded from 470 ft on the southwest side to 760 ft on the southwest side
Elevation
760 ft 230 m680 ft 210 m650 ft 195 m580 ft 175 m500 ft 155 m470 ft 140 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

Hancock County averages about 640 ft (195 m) above sea level across all its land. Its ground runs from 470 ft on the southwest side to 760 ft on the southwest side.

Average elevation
640 ft 195 m
all land inside the county
Highest
760 ft 230 m
on the southwest side
Lowest
470 ft 140 m
on the southwest side

Hancock County spans about 290 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 land640 ft195 m
Highest point
Inside the county, on the southwest side
760 ft230 m
Lowest point
Inside the county, on the southwest side
470 ft140 m

Elevation profile, west to east

24 mi west to east through Montebello Township.

Topographic Map

Topographic elevation map of Hancock County, Illinois, shaded from 470 ft on the southwest side to 760 ft on the southwest side
County boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
County in Illinois, United States
Population
17,008 2024 est.
Land area
793.7 sq mi + 20.7 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. McDonough County670 ft
  2. Adams County660 ft
  3. Lee County, IA650 ft
  4. Henderson County650 ft
  5. Clark County, MO650 ft
  6. Hancock County640 ft
  7. Lewis County, MO630 ft
  8. Schuyler County590 ft

Rankings by average elevation

Peaks and hills highest inside

  • Mount Moriah660 ft
All 39 towns in Hancock County by typical elevation
  1. La Harpe690 ft
  2. La Harpe Township690 ft
  3. Rock Creek Township690 ft
  4. Ferris690 ft
  5. Bowen690 ft
  6. Chili Township690 ft
  7. Prairie Township, Hancock County670 ft
  8. Bentley670 ft
  9. Carthage670 ft
  10. Carthage Township670 ft
  11. West Point670 ft
  12. Harmony Township670 ft
  13. St. Albans Township670 ft
  14. Appanoose Township670 ft
  15. Augusta Township670 ft
  16. Augusta670 ft
  17. Sonora Township660 ft
  18. Elvaston660 ft
  19. Walker Township660 ft
  20. Wythe Township660 ft
  21. Pontoosuc Township660 ft
  22. Fountain Green Township650 ft
  23. Nauvoo650 ft
  24. Nauvoo Township650 ft
  25. Durham Township640 ft
  26. Plymouth640 ft
  27. St. Mary Township640 ft
  28. Bear Creek Township, Hancock County640 ft
  29. Rocky Run-Wilcox Township640 ft
  30. Pilot Grove Township640 ft
  31. Basco630 ft
  32. Hamilton630 ft
  33. Montebello Township630 ft
  34. Dallas City Township620 ft
  35. Hancock Township610 ft
  36. Warsaw580 ft
  37. Dallas City550 ft
  38. Pontoosuc530 ft
  39. Niota520 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.
  • 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, 340 ft at 40.3826° N, 91.3568° 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.