Kendall County, IL Elevation & Topographic Map

Topographic elevation map of Kendall County, Illinois, shaded from 540 ft on the west side to 820 ft near the middle
Elevation
820 ft 250 m750 ft 230 m710 ft 215 m640 ft 195 m580 ft 175 m540 ft 165 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

Kendall County averages about 650 ft (200 m) above sea level across all its land. Its ground runs from 540 ft on the west side to 820 ft near the middle.

Average elevation
650 ft 200 m
all land inside the county
Highest
820 ft 250 m
near the middle
Lowest
540 ft 165 m
on the west side

Kendall County spans about 280 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 land650 ft200 m
Highest point
Inside the county, near the middle
820 ft250 m
Lowest point
Inside the county, on the west side
540 ft165 m

Elevation profile, south to north

18 mi south to north through Oswego Township.

Topographic Map

Topographic elevation map of Kendall County, Illinois, shaded from 540 ft on the west side to 820 ft near the middle
County boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
County in Illinois, United States
Population
143,171 2024 est.
Land area
320.2 sq mi + 2.0 sq mi water
Density
447 per sq mi
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
Drains to
Gulf of America
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WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.

Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. DeKalb County830 ft
  2. Kane County810 ft
  3. DuPage County730 ft
  4. Will County660 ft
  5. LaSalle County660 ft
  6. Kendall County650 ft
  7. Grundy County590 ft

Rankings by average elevation

Peaks and hills highest inside

  • Maramech Hill650 ft
All 24 towns in Kendall County by typical elevation
  1. Aurora partly700 ft
  2. Kendall Township690 ft
  3. Big Grove Township680 ft
  4. Newark670 ft
  5. Lisbon670 ft
  6. Sandwich partly670 ft
  7. Boulder Hill660 ft
  8. Montgomery660 ft
  9. Oswego Township660 ft
  10. Oswego660 ft
  11. Na-Au-Say Township650 ft
  12. Bristol Township650 ft
  13. Little Rock Township650 ft
  14. Plano650 ft
  15. Yorkville650 ft
  16. Fox Township640 ft
  17. Plainfield partly630 ft
  18. Seward Township630 ft
  19. Joliet partly620 ft
  20. Millbrook610 ft
  21. Lisbon Township610 ft
  22. Minooka partly610 ft
  23. Plattville600 ft
  24. Millington partly570 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, 440 ft at 41.4751° N, 88.4374° 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.