Mendon Township, IL Elevation & Topographic Map

Topographic elevation map of Mendon Township, Illinois, shaded from 510 ft on the northwest side to 790 ft on the south side
Elevation
790 ft 240 m720 ft 220 m690 ft 210 m620 ft 190 m550 ft 165 m510 ft 155 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

Mendon Township sits at about 740 ft (225 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
740 ft 225 m
most residents: 650–770 ft
Lowest
510 ft 155 m
on the northwest side
Highest
790 ft 240 m
on the south side
Average
680 ft 205 m
all land inside township boundaries

Mendon Township spans about 280 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
740 ft225 m
Highest point
Inside township boundaries, on the south side
790 ft240 m
Lowest point
Inside township boundaries, on the northwest side
510 ft155 m
Town center
USGS map point for Mendon Township
770 ft235 m
Airport (UIN)
FAA airport elevation, the highest point of its runways, 6.6 mi southeast of the township boundaries
769 ft234 m
Average of all land680 ft205 m

Elevation profile, south to north

8.8 mi south to north through the town center.

Topographic Map

Topographic elevation map of Mendon Township, Illinois, shaded from 510 ft on the northwest side to 790 ft on the south side
Township boundaries (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
Township in Adams County, Illinois, United States
Population
1,385 2024 est.
Land area
36.7 sq mi + 0.1 sq mi water
Density
38 per sq mi
Coordinates
40.0884° N, 91.2838° W
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
Drains to
Mississippi River → Gulf of America
Airport
Quincy Regional-Baldwin Field (UIN) 769 ft
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WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.

Sources: U.S. Census Bureau, USGS, FAA

Nearby Places

Nearby towns by typical elevation

  1. Mendon750 ft
  2. Mendon Township740 ft
  3. Paloma730 ft
  4. Fowler730 ft
  5. Honey Creek Township, Adams County730 ft
  6. Bloomfield710 ft
  7. Loraine630 ft
  8. Keene Township630 ft
  9. Marcelline610 ft
  10. Ursa610 ft
  11. Ursa Township600 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); FAA airport data; BTS time zones. All public domain.