Sanborn County, SD Elevation & Topographic Map

Topographic elevation map of Sanborn County, South Dakota, shaded from 1,210 ft on the south side to 1,370 ft on the west side
Elevation
1,370 ft 420 m1,330 ft 405 m1,310 ft 400 m1,270 ft 385 m1,230 ft 375 m1,210 ft 370 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

Sanborn County averages about 1,300 ft (395 m) above sea level across all its land. Its ground runs from 1,210 ft on the south side to 1,370 ft on the west side.

Average elevation
1,300 ft 395 m
all land inside the county
Highest
1,370 ft 420 m
on the west side
Lowest
1,210 ft 370 m
on the south side

Sanborn County spans about 160 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 land1,300 ft395 m
Highest point
Inside the county, on the west side
1,370 ft420 m
Lowest point
Inside the county, on the south side
1,210 ft370 m

Elevation profile, west to east

24 mi west to east through Woonsocket.

Topographic Map

Topographic elevation map of Sanborn County, South Dakota, shaded from 1,210 ft on the south side to 1,370 ft on the west side
County boundary (dashed) over shaded terrain, with contours every 10 ft (3 m).
Location
County in South Dakota, United States
Population
2,392 2024 est.
Land area
569.2 sq mi + 1.2 sq mi water
Density
4.2 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. Kingsbury County1,670 ft
  2. Jerauld County1,640 ft
  3. Aurora County1,570 ft
  4. Miner County1,490 ft
  5. Davison County1,380 ft
  6. Beadle County1,340 ft
  7. Hanson County1,330 ft
  8. Sanborn County1,300 ft

Rankings by average elevation

Peaks and hills highest inside

  • Big Mound1,310 ft
All 21 towns in Sanborn County by typical elevation
  1. Afton Township, Sanborn County1,330 ft
  2. Ravenna Township1,320 ft
  3. Artesian1,310 ft
  4. Diana Township1,310 ft
  5. Benedict Township1,310 ft
  6. Floyd Township1,310 ft
  7. Warren Township1,310 ft
  8. Elliott Township1,310 ft
  9. Letcher Township1,300 ft
  10. Woonsocket1,300 ft
  11. Letcher1,300 ft
  12. Twin Lake Township1,300 ft
  13. Woonsocket Township1,300 ft
  14. Butler Township1,300 ft
  15. Upland Colony1,300 ft
  16. Oneida Township1,300 ft
  17. Jackson Township, Sanborn County1,290 ft
  18. Union Township, Sanborn County1,290 ft
  19. Silver Creek Township1,280 ft
  20. Logan Township, Sanborn County1,280 ft
  21. Forestburg1,270 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.