Guilford Township, IL Elevation & Topographic Map

Topographic elevation map of Guilford Township, Illinois, shaded from 710 ft on the southwest side to 1,150 ft on the northeast side
Elevation
1,150 ft 350 m1,040 ft 315 m980 ft 300 m870 ft 265 m760 ft 235 m710 ft 215 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

Guilford Township sits at about 870 ft (265 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
870 ft 265 m
most residents: 760–990 ft
Lowest
710 ft 215 m
on the southwest side
Highest
1,150 ft 350 m
on the northeast side
Average
930 ft 285 m
all land inside township boundaries

Guilford Township spans about 440 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
870 ft265 m
Highest point
Inside township boundaries, on the northeast side
1,150 ft350 m
Lowest point
Inside township boundaries, on the southwest side
710 ft215 m
Town center
USGS map point for Guilford Township
760 ft230 m
Average of all land930 ft285 m

Elevation profile, west to east

6.1 mi west to east through the town center.

Topographic Map

Topographic elevation map of Guilford Township, Illinois, shaded from 710 ft on the southwest side to 1,150 ft on the northeast side
Township boundaries (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
Township in Jo Daviess County, Illinois, United States
Population
1,509 2024 est.
Land area
37.1 sq mi + 0.2 sq mi water
Density
41 per sq mi
Coordinates
42.4175° N, 90.3004° 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. Scales Mound970 ft
  2. Scales Mound Township960 ft
  3. Guilford Township870 ft
  4. Apple Canyon Lake860 ft
  5. Thompson Township860 ft
  6. The Galena Territory820 ft
  7. Council Hill Township810 ft
  8. Rice Township750 ft
  9. West Galena Township740 ft
  10. East Galena Township740 ft
  11. Galena740 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Charles Mound1,230 ft
  • Hudson Mound1,170 ft
  • Scales Mound1,160 ft
  • Horseshoe Mound1,076 ft
  • Wenzel Mound1,050 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.