Mercer County, OH Elevation & Topographic Map

Topographic elevation map of Mercer County, Ohio, shaded from 780 ft near the middle to 1,070 ft on the southwest side
Elevation
1,070 ft 330 m1,000 ft 305 m960 ft 295 m890 ft 270 m820 ft 250 m780 ft 240 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

Mercer County averages about 890 ft (270 m) above sea level across all its land. Its ground runs from 780 ft near the middle to 1,070 ft on the southwest side.

Average elevation
890 ft 270 m
all land inside the county
Highest
1,070 ft 330 m
on the southwest side
Lowest
780 ft 240 m
near the middle

Mercer County spans about 290 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 the southwest side
1,070 ft330 m
Lowest point
Inside the county, near the middle
780 ft240 m

Elevation profile, south to north

26 mi south to north through Jefferson Township, Mercer County.

Topographic Map

Topographic elevation map of Mercer County, Ohio, shaded from 780 ft near the middle to 1,070 ft on the southwest side
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Ohio, United States
Population
42,648 2024 est.
Land area
462.4 sq mi + 11.0 sq mi water
Density
92 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
Central Lowland
Drains to
Gulf of America 58%, Great Lakes 42%
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Darke County1,040 ft
  2. Shelby County1,010 ft
  3. Auglaize County930 ft
  4. Jay County, IN930 ft
  5. Mercer County890 ft
  6. Adams County, IN830 ft
  7. Van Wert County790 ft

Rankings by average elevation

  • Counties in Ohio52nd highest of 88
  • Counties in the United States1,634th highest of 3,151
All 24 towns in Mercer County by typical elevation
  1. Burkettsville970 ft
  2. Maria Stein970 ft
  3. Granville Township, Mercer County970 ft
  4. St. Henry960 ft
  5. Marion Township, Mercer County960 ft
  6. Gibson Township950 ft
  7. Recovery Township940 ft
  8. Chickasaw940 ft
  9. Fort Recovery940 ft
  10. Coldwater910 ft
  11. Butler Township, Mercer County910 ft
  12. Washington Township, Mercer County900 ft
  13. Montezuma880 ft
  14. Celina880 ft
  15. Jefferson Township, Mercer County880 ft
  16. Franklin Township, Mercer County870 ft
  17. Liberty Township, Mercer County860 ft
  18. Hopewell Township, Mercer County860 ft
  19. Center Township, Mercer County850 ft
  20. Union Township, Mercer County820 ft
  21. Mendon820 ft
  22. Black Creek Township820 ft
  23. Dublin Township810 ft
  24. Rockford810 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, 680 ft at 40.5376° N, 84.6501° 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.