Sullivan County, IN Elevation & Topographic Map

Topographic elevation map of Sullivan County, Indiana, shaded from 420 ft on the south side to 710 ft on the southeast side
Elevation
710 ft 215 m630 ft 195 m600 ft 180 m530 ft 160 m450 ft 140 m420 ft 125 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

Sullivan County averages about 510 ft (155 m) above sea level across all its land. Its ground runs from 420 ft on the south side to 710 ft on the southeast side.

Average elevation
510 ft 155 m
all land inside the county
Highest
710 ft 215 m
on the southeast side
Lowest
420 ft 125 m
on the south side

Sullivan 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 land510 ft155 m
Highest point
Inside the county, on the southeast side
710 ft215 m
Lowest point
Inside the county, on the south side
420 ft125 m

Elevation profile, west to east

20 mi west to east through Hamilton Township, Sullivan County.

Topographic Map

Topographic elevation map of Sullivan County, Indiana, shaded from 420 ft on the south side to 710 ft on the southeast side
County boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
County in Indiana, United States
Population
20,768 2024 est.
Land area
447.2 sq mi + 6.9 sq mi water
Density
46 per sq mi
Time zone
Eastern UTC−5 / −4
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. Clay County610 ft
  2. Greene County590 ft
  3. Clark County, IL590 ft
  4. Vigo County540 ft
  5. Sullivan County510 ft
  6. Crawford County, IL500 ft
  7. Knox County460 ft

Rankings by average elevation

Peaks and hills highest inside

  • Ladd Hill630 ft
  • Fairbanks Mound540 ft
All 23 towns in Sullivan County by typical elevation
  1. Lewis partly600 ft
  2. Dugger590 ft
  3. Cass580 ft
  4. Cass Township, Sullivan County570 ft
  5. Farmersburg570 ft
  6. Graysville560 ft
  7. Pleasantville560 ft
  8. Fairbanks550 ft
  9. Merom550 ft
  10. Jefferson Township, Sullivan County550 ft
  11. Curry Township540 ft
  12. Shelburn540 ft
  13. Jackson Township, Sullivan County530 ft
  14. Hymera530 ft
  15. Paxton520 ft
  16. Fairbanks Township520 ft
  17. Sullivan520 ft
  18. Turman Township510 ft
  19. Hamilton Township, Sullivan County510 ft
  20. New Lebanon510 ft
  21. Carlisle510 ft
  22. Gill Township500 ft
  23. Haddon Township480 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, 250 ft at 39.0187° N, 87.3165° 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.