Southwest Township, IL Elevation & Topographic Map

Topographic elevation map of Southwest Township, Illinois, shaded from 420 ft on the east side to 500 ft on the east side
Elevation
500 ft 155 m480 ft 150 m470 ft 145 m450 ft 140 m430 ft 130 m420 ft 130 m
Contours every 100 ft, bold every 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.
Township area
Fades everything outside the official township boundaries (US Census).

Elevation Data

Southwest Township sits at about 460 ft (140 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
460 ft 140 m
most residents: 440–480 ft
Lowest
420 ft 130 m
on the east side
Highest
500 ft 155 m
on the east side
Average
450 ft 140 m
all land inside township boundaries

Southwest Township spans about 80 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
460 ft140 m
Highest point
Inside township boundaries, on the east side
500 ft155 m
Lowest point
Inside township boundaries, on the east side
420 ft130 m
Average of all land450 ft140 m

Elevation profile, south to north

2.6 mi south to north through the middle of Southwest Township.

Topographic Map

Topographic elevation map of Southwest Township, Illinois, shaded from 420 ft on the east side to 500 ft on the east side
Township boundaries (dashed) over shaded terrain, with contours every 10 ft (3 m).
Location
Township in Crawford County, Illinois, United States
Population
77 2024 est.
Land area
15.1 sq mi
Density
5.1 per sq mi
Coordinates
38.8574° N, 87.8800° W
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
Drains to
Embarras River → Wabash River → Ohio River → Mississippi River → Gulf of America
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Sources: U.S. Census Bureau, USGS

Nearby Places

Nearby towns by typical elevation

  1. Honey Creek Township530 ft
  2. Oblong Township500 ft
  3. Sumner490 ft
  4. Christy Township490 ft
  5. Stoy490 ft
  6. German Township480 ft
  7. Ste. Marie480 ft
  8. Ste. Marie Township480 ft
  9. Southwest Township460 ft
  10. Martin Township, Crawford County460 ft
  11. Petty Township460 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Red Hill631 ft
  • Onion Hill560 ft
  • Bristol Hill560 ft
  • Indian Mound520 ft
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; NOAA NGS survey heights. All public domain.