Jefferson County, WI Elevation & Topographic Map

Topographic elevation map of Jefferson County, Wisconsin, shaded from 780 ft on the southwest side to 1,060 ft on the west side
Elevation
1,060 ft 325 m990 ft 300 m950 ft 290 m880 ft 270 m810 ft 250 m780 ft 235 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

Jefferson County averages about 840 ft (255 m) above sea level across all its land. Its ground runs from 780 ft on the southwest side to 1,060 ft on the west side.

Average elevation
840 ft 255 m
all land inside the county
Highest
1,060 ft 325 m
on the west side
Lowest
780 ft 235 m
on the southwest side

Jefferson 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 land840 ft255 m
Highest point
Inside the county, on the west side
1,060 ft325 m
Lowest point
Inside the county, on the southwest side
780 ft235 m

Elevation profile, west to east

24 mi west to east through Watertown.

Topographic Map

Topographic elevation map of Jefferson County, Wisconsin, shaded from 780 ft on the southwest side to 1,060 ft on the west side
County boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
County in Wisconsin, United States
Population
86,245 2024 est.
Land area
556.5 sq mi + 26.2 sq mi water
Density
155 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. Dane County950 ft
  2. Walworth County920 ft
  3. Dodge County910 ft
  4. Waukesha County890 ft
  5. Rock County880 ft
  6. Jefferson County840 ft

Rankings by average elevation

All 33 towns in Jefferson County by typical elevation
  1. Lac La Belle partly890 ft
  2. Sullivan870 ft
  3. Ixonia870 ft
  4. Oakland860 ft
  5. Lake Ripley860 ft
  6. Ixonia, Jefferson County860 ft
  7. Concord860 ft
  8. Cambridge partly860 ft
  9. Village of Sullivan860 ft
  10. Town of Palmyra850 ft
  11. Rome, Jefferson County850 ft
  12. Town of Lake Mills850 ft
  13. Palmyra850 ft
  14. Whitewater partly840 ft
  15. Town of Watertown840 ft
  16. Waterloo840 ft
  17. Watertown840 ft
  18. Farmington, Jefferson County840 ft
  19. Lake Mills840 ft
  20. Helenville840 ft
  21. Town of Waterloo830 ft
  22. Town of Jefferson830 ft
  23. Koshkonong820 ft
  24. Aztalan820 ft
  25. Hebron, Jefferson County820 ft
  26. Johnson Creek820 ft
  27. Jefferson810 ft
  28. Fort Atkinson810 ft
  29. Hebron810 ft
  30. Cold Spring810 ft
  31. Milford810 ft
  32. Sumner, Jefferson County800 ft
  33. Lake Koshkonong780 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, 750 ft at 42.9079° N, 88.8151° 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.