Waukesha County, WI Elevation & Topographic Map

Topographic elevation map of Waukesha County, Wisconsin, shaded from 610 ft on the east side to 1,230 ft on Lapham Hill
Elevation
1,230 ft 375 m1,070 ft 325 m1,000 ft 305 m840 ft 255 m690 ft 210 m610 ft 185 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

Waukesha County averages about 890 ft (270 m) above sea level across all its land. Its ground runs from 610 ft on the east side to 1,230 ft on Lapham Hill.

Average elevation
890 ft 270 m
all land inside the county
Highest
1,230 ft 375 m
on Lapham Hill
Lowest
610 ft 185 m
on the east side

Waukesha County spans about 620 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 land890 ft270 m
Highest point
Inside the county, on Lapham Hill (3DEP terrain model; no NGS survey height)
1,230 ft375 m
Lowest point
Inside the county, on the east side
610 ft185 m

Elevation profile, south to north

24 mi south to north through Waukesha.

Topographic Map

Topographic elevation map of Waukesha County, Wisconsin, shaded from 610 ft on the east side to 1,230 ft on Lapham Hill
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Wisconsin, United States
Population
417,029 2024 est.
Land area
549.7 sq mi + 30.8 sq mi water
Density
759 per sq mi
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
Drains to
Gulf of America 96%
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Washington County980 ft
  2. Walworth County920 ft
  3. Dodge County910 ft
  4. Waukesha County890 ft
  5. Jefferson County840 ft
  6. Racine County760 ft
  7. Milwaukee County710 ft

Rankings by average elevation

Peaks and hills highest inside

  • Lapham Hill1,230 ft
All 38 towns in Waukesha County by typical elevation
  1. Wales1,000 ft
  2. Delafield990 ft
  3. Lisbon980 ft
  4. Village of Merton980 ft
  5. North Prairie970 ft
  6. Merton960 ft
  7. Genesee960 ft
  8. Hartland950 ft
  9. Town of Mukwonago940 ft
  10. Nashotah940 ft
  11. Sussex940 ft
  12. Chenequa930 ft
  13. North Lake930 ft
  14. Village of Eagle930 ft
  15. City of Delafield930 ft
  16. Eagle920 ft
  17. Lac La Belle890 ft
  18. Lannon880 ft
  19. Village of Waukesha880 ft
  20. Ottawa880 ft
  21. Vernon880 ft
  22. Waukesha880 ft
  23. Town of Oconomowoc880 ft
  24. Summit880 ft
  25. Oconomowoc870 ft
  26. Oconomowoc Lake870 ft
  27. Village of Pewaukee870 ft
  28. Pewaukee870 ft
  29. New Berlin870 ft
  30. Town of Brookfield870 ft
  31. Dousman860 ft
  32. Brookfield850 ft
  33. Menomonee Falls840 ft
  34. Mukwonago830 ft
  35. Big Bend820 ft
  36. Muskego800 ft
  37. Elm Grove790 ft
  38. Butler760 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.