Jo Daviess County, IL Elevation & Topographic Map

Topographic elevation map of Jo Daviess County, Illinois, shaded from 590 ft on the south side to 1,230 ft on Charles Mound
Elevation
1,230 ft 375 m1,070 ft 325 m990 ft 300 m830 ft 255 m670 ft 205 m590 ft 180 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

Jo Daviess County averages about 840 ft (255 m) above sea level across all its land. Its ground runs from 590 ft on the south side to 1,230 ft on Charles Mound.

Average elevation
840 ft 255 m
all land inside the county
Highest
1,230 ft 375 m
on Charles Mound
Lowest
590 ft 180 m
on the south side

Jo Daviess County spans about 640 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 land840 ft255 m
Highest point
Inside the county, on Charles Mound (3DEP terrain model; no NGS survey height)
1,230 ft375 m
Lowest point
Inside the county, on the south side
590 ft180 m

Elevation profile, west to east

37 mi west to east through Dunleith Township.

Topographic Map

Topographic elevation map of Jo Daviess County, Illinois, shaded from 590 ft on the south side to 1,230 ft on Charles Mound
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Illinois, United States
Population
21,528 2024 est.
Land area
600.9 sq mi + 17.7 sq mi water
Density
36 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. Dubuque County, IA970 ft
  2. Lafayette County, WI960 ft
  3. Grant County, WI950 ft
  4. Stephenson County870 ft
  5. Jo Daviess County840 ft
  6. Jackson County, IA810 ft
  7. Carroll County780 ft

Rankings by average elevation

Peaks and hills highest inside

  • Charles Mound1,230 ft
  • Benton Mound1,230 ft
  • Mound Sumner1,180 ft
  • Hudson Mound1,170 ft
  • Squirrel Grove Mound1,170 ft
All 35 towns in Jo Daviess County by typical elevation
  1. Warren1,010 ft
  2. Warren Township, Jo Daviess County1,010 ft
  3. Stockton1,000 ft
  4. Nora1,000 ft
  5. Apple River1,000 ft
  6. Apple River Township1,000 ft
  7. Stockton Township990 ft
  8. Nora Township980 ft
  9. Scales Mound970 ft
  10. Scales Mound Township960 ft
  11. Rush Township940 ft
  12. Wards Grove Township920 ft
  13. Berreman Township890 ft
  14. Guilford Township870 ft
  15. Apple Canyon Lake860 ft
  16. Thompson Township860 ft
  17. Pleasant Valley Township850 ft
  18. The Galena Territory820 ft
  19. Woodbine Township820 ft
  20. Vinegar Hill Township810 ft
  21. Council Hill Township810 ft
  22. Elizabeth810 ft
  23. Derinda Township810 ft
  24. Rawlins Township800 ft
  25. Menominee Township800 ft
  26. Elizabeth Township800 ft
  27. Menominee800 ft
  28. Rice Township750 ft
  29. West Galena Township740 ft
  30. East Galena Township740 ft
  31. Galena740 ft
  32. Dunleith Township730 ft
  33. East Dubuque730 ft
  34. Hanover Township, Jo Daviess County650 ft
  35. Hanover640 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.