Erin Township, IL Elevation & Topographic Map

Topographic elevation map of Erin Township, Illinois, shaded from 800 ft on the northeast side to 1,120 ft on the south side
Elevation
1,120 ft 340 m1,040 ft 315 m1,000 ft 305 m920 ft 280 m840 ft 255 m800 ft 245 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

Erin Township sits at about 930 ft (280 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
930 ft 280 m
most residents: 890–1,100 ft
Lowest
800 ft 245 m
on the northeast side
Highest
1,120 ft 340 m
on the south side
Average
930 ft 285 m
all land inside township boundaries

Erin Township spans about 320 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
930 ft280 m
Highest point
Inside township boundaries, on the south side
1,120 ft340 m
Lowest point
Inside township boundaries, on the northeast side
800 ft245 m
Average of all land930 ft285 m

Elevation profile, south to north

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

Topographic Map

Topographic elevation map of Erin Township, Illinois, shaded from 800 ft on the northeast side to 1,120 ft on the south side
Township boundaries (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
Township in Stephenson County, Illinois, United States
Population
370 2024 est.
Land area
18.1 sq mi
Density
20 per sq mi
Coordinates
42.3355° N, 89.7805° W
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
Drains to
Pecatonica River → 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. West Point Township950 ft
  2. Lena950 ft
  3. Erin Township930 ft
  4. Wards Grove Township920 ft
  5. Kent Township890 ft
  6. Loran Township840 ft
  7. Pearl City840 ft
  8. Cedarville840 ft
  9. Waddams Township830 ft
  10. Willow Lake820 ft
  11. Harlem Township, Stephenson County820 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Benton Mound1,230 ft
  • Simmons Mound1,080 ft
  • Bunker Hill, Stephenson County960 ft
  • Coffman Bluff950 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. All public domain.