Sangamon County, IL Elevation & Topographic Map

Topographic elevation map of Sangamon County, Illinois, shaded from 490 ft on the northwest side to 720 ft on the southwest side
Elevation
720 ft 220 m660 ft 200 m630 ft 190 m570 ft 175 m520 ft 160 m490 ft 150 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

Sangamon County averages about 600 ft (185 m) above sea level across all its land. Its ground runs from 490 ft on the northwest side to 720 ft on the southwest side.

Average elevation
600 ft 185 m
all land inside the county
Highest
720 ft 220 m
on the southwest side
Lowest
490 ft 150 m
on the northwest side

Sangamon 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 land600 ft185 m
Highest point
Inside the county, on the southwest side
720 ft220 m
Lowest point
Inside the county, on the northwest side
490 ft150 m

Elevation profile, south to north

31 mi south to north through Springfield.

Topographic Map

Topographic elevation map of Sangamon County, Illinois, shaded from 490 ft on the northwest side to 720 ft on the southwest side
County boundary (dashed) over shaded terrain, with contours every 10 ft (3 m).
Location
County in Illinois, United States
Population
194,345 2024 est.
Land area
868.2 sq mi + 8.8 sq mi water
Density
224 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. Macon County670 ft
  2. Montgomery County640 ft
  3. Macoupin County630 ft
  4. Christian County620 ft
  5. Morgan County620 ft
  6. Sangamon County600 ft
  7. Logan County600 ft
  8. Menard County580 ft
  9. Cass County540 ft

Rankings by average elevation

Peaks and hills highest inside

  • Cotton Hill610 ft
  • Yellow Hammer Knob610 ft
All 52 towns in Sangamon County by typical elevation
  1. Virden partly670 ft
  2. Talkington Township670 ft
  3. New Berlin Township650 ft
  4. New Berlin650 ft
  5. Maxwell Township640 ft
  6. Thayer640 ft
  7. Berlin640 ft
  8. Loami630 ft
  9. Loami Township630 ft
  10. Island Grove Township630 ft
  11. Auburn Township630 ft
  12. Auburn620 ft
  13. Curran620 ft
  14. Buffalo Hart Township620 ft
  15. Divernon Township610 ft
  16. Divernon610 ft
  17. Pleasant Plains610 ft
  18. Cartwright Township610 ft
  19. Curran Township610 ft
  20. Southern View610 ft
  21. Pawnee Township600 ft
  22. Pawnee600 ft
  23. Buffalo600 ft
  24. Illiopolis600 ft
  25. Jerome600 ft
  26. Leland Grove600 ft
  27. Illiopolis Township600 ft
  28. Chatham Township600 ft
  29. Woodside Township600 ft
  30. Chatham600 ft
  31. Capital Township600 ft
  32. Springfield600 ft
  33. Ball Township600 ft
  34. Grandview600 ft
  35. Dawson590 ft
  36. Mechanicsburg Township590 ft
  37. Springfield Township590 ft
  38. Lanesville Township590 ft
  39. Mechanicsburg590 ft
  40. Williamsville590 ft
  41. Gardner Township590 ft
  42. Cantrall580 ft
  43. Cotton Hill Township580 ft
  44. Cooper Township580 ft
  45. Fancy Creek Township580 ft
  46. Williams Township580 ft
  47. Rochester580 ft
  48. Rochester Township580 ft
  49. Sherman580 ft
  50. Spaulding570 ft
  51. Riverton570 ft
  52. Clear Lake Township570 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, 490 ft at 39.9146° N, 89.7668° 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.