Nameoki Township, IL Elevation & Topographic Map

Topographic elevation map of Nameoki Township, Illinois, shaded from 400 ft on the south side to 520 ft on Monks Mound
Elevation
520 ft 160 m490 ft 150 m470 ft 145 m440 ft 135 m410 ft 125 m400 ft 120 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

Nameoki Township sits at about 420 ft (125 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
420 ft 125 m
most residents: 410–420 ft
Lowest
400 ft 120 m
on the south side
Highest
520 ft 160 m
on Monks Mound
Average
420 ft 125 m
all land inside township boundaries

Nameoki Township spans about 120 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
420 ft125 m
Highest point
Inside township boundaries, on Monks Mound
520 ft160 m
Lowest point
Inside township boundaries, on the south side
400 ft120 m
Average of all land420 ft125 m

Elevation profile, south to north

6.0 mi south to north through the middle of Nameoki Township.

Topographic Map

Topographic elevation map of Nameoki Township, Illinois, shaded from 400 ft on the south side to 520 ft on Monks Mound
Township boundaries (dashed) over shaded terrain, with contours every 10 ft (3 m).
Location
Township in Madison County, Illinois, United States
Population
11,936 2024 est.
Land area
21.4 sq mi + 4.8 sq mi water
Density
557 per sq mi
Coordinates
38.7178° N, 90.0808° W
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
Drains to
Mississippi River → Gulf of America
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Sources: U.S. Census Bureau, USGS

Nearby Places

Nearby towns by typical elevation

  1. Glen Carbon550 ft
  2. Mitchell430 ft
  3. Chouteau Township430 ft
  4. Granite City420 ft
  5. Granite City Township420 ft
  6. Fairmont City420 ft
  7. Nameoki Township420 ft
  8. Pontoon Beach420 ft
  9. Madison410 ft
  10. Venice Township410 ft
  11. Venice410 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Clarks Mound677 ft
  • Fox Hill600 ft
  • Winstanley Hill580 ft
  • Monks Mound520 ft
  • Rattlesnake Mound430 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.