South Grove Township, IL Elevation & Topographic Map

Topographic elevation map of South Grove Township, Illinois, shaded from 780 ft on the north side to 960 ft on the south side
Elevation
960 ft 290 m910 ft 280 m890 ft 270 m840 ft 255 m800 ft 245 m780 ft 235 m
Contours every 200 ft, bold every 1,000 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.
Township area
Fades everything outside the official township boundaries (US Census).

Elevation Data

South Grove Township sits at about 850 ft (260 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
850 ft 260 m
most residents: 820–900 ft
Lowest
780 ft 235 m
on the north side
Highest
960 ft 290 m
on the south side
Average
860 ft 260 m
all land inside township boundaries

South Grove Township spans about 180 ft of height, so no single spot tells the whole story. The ruler shows where its people live, and where the other numbers you'll see come from.

FigureElevation
Typical
Where people live: half of residents higher, half lower
850 ft260 m
Highest point
Inside township boundaries, on the south side
960 ft290 m
Lowest point
Inside township boundaries, on the north side
780 ft235 m
Average of all land860 ft260 m

Elevation profile, south to north

6.0 mi south to north through the middle of South Grove Township.

Topographic Map

Topographic elevation map of South Grove Township, Illinois, shaded from 780 ft on the north side to 960 ft on the south side
Township boundaries (dashed) over shaded terrain, with contours every 10 ft (3 m).
Location
Township in DeKalb County, Illinois, United States
Population
415 2024 est.
Land area
34.4 sq mi + 0.1 sq mi water
Density
12 per sq mi
Coordinates
42.0188° N, 88.8831° W
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
Drains to
Rock River → Mississippi River → Gulf of America
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Sources: U.S. Census Bureau, USGS

Nearby Places

Nearby towns by typical elevation

  1. Malta910 ft
  2. Malta Township910 ft
  3. Creston910 ft
  4. Dement Township900 ft
  5. Monroe Center850 ft
  6. South Grove Township850 ft
  7. Mayfield Township850 ft
  8. Kingston Township810 ft
  9. Franklin Township770 ft
  10. Kirkland770 ft
  11. Lynnville Township770 ft

Rankings by typical elevation

How we measure
  • Typical elevation: the population-weighted median: every 2020 Census block inside the township boundaries, at its USGS 3DEP height, weighted by the people who live there. Half of residents live higher, half lower.
  • Lowest, highest, average: USGS 3DEP bare-earth heights on a 1 arc-second (≈100 ft, 30 m) grid, land only, inside the Census township boundaries (TIGER, Jan 1 2026).
  • Nearby Places: nearby towns and rankings use each town's typical elevation, so every town is compared like for like. Rankings count every city, town, township and census-designated place, including places inside a town. Peaks and hills: the nearest summits with at least 980 ft (300 m) of prominence within 62 mi (100 km), then federal (GNIS) summits within 16 mi (25 km) 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).
  • 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 (FAA airport elevation, 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 (boundaries, 2020 blocks, 2024 population estimates, Gazetteer areas); BTS time zones. All public domain.