Defiance County, OH Elevation & Topographic Map

Topographic elevation map of Defiance County, Ohio, shaded from 650 ft on the east side to 880 ft on the northwest side
Elevation
880 ft 270 m820 ft 250 m790 ft 240 m740 ft 225 m680 ft 205 m650 ft 195 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

Defiance County averages about 730 ft (225 m) above sea level across all its land. Its ground runs from 650 ft on the east side to 880 ft on the northwest side.

Average elevation
730 ft 225 m
all land inside the county
Highest
880 ft 270 m
on the northwest side
Lowest
650 ft 195 m
on the east side

Defiance County spans about 230 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 land730 ft225 m
Highest point
Inside the county, on the northwest side
880 ft270 m
Lowest point
Inside the county, on the east side
650 ft195 m

Elevation profile, west to east

30 mi west to east through Defiance.

Topographic Map

Topographic elevation map of Defiance County, Ohio, shaded from 650 ft on the east side to 880 ft on the northwest side
County boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
County in Ohio, United States
Population
38,644 2024 est.
Land area
411.4 sq mi + 2.7 sq mi water
Density
94 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
Central Lowland
Drains to
Great Lakes
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. DeKalb County, IN890 ft
  2. Williams County840 ft
  3. Allen County, IN800 ft
  4. Putnam County740 ft
  5. Defiance County730 ft
  6. Paulding County730 ft
  7. Henry County700 ft

Rankings by average elevation

  • Counties in Ohio79th highest of 88
  • Counties in the United States1,956th highest of 3,151
All 17 towns in Defiance County by typical elevation
  1. Milford Township, Defiance County840 ft
  2. Farmer Township760 ft
  3. Hicksville Township760 ft
  4. Hicksville760 ft
  5. Adams Township, Defiance County730 ft
  6. Mark Township720 ft
  7. Highland Township720 ft
  8. Richland Township, Defiance County720 ft
  9. Washington Township, Defiance County710 ft
  10. Ney710 ft
  11. Village of Sherwood710 ft
  12. Delaware Township, Defiance County710 ft
  13. Noble Township710 ft
  14. Tiffin Township, Defiance County710 ft
  15. Defiance710 ft
  16. Defiance Township700 ft
  17. Brunersburg700 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.
  • 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.