Amboy Township, IL Elevation & Topographic Map

Elevation
920 ft 280 m860 ft 265 m840 ft 255 m780 ft 240 m730 ft 220 m700 ft 215 m
Contours every 200 ft, bold every 1,000 ft
USGS 3DEP · U.S. Census Bureau
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
Amboy Township sits at about 750 ft (230 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
750 ft 230 m
most residents: 740–760 ft
Lowest
700 ft 215 m
on the southwest side
Highest
920 ft 280 m
on the west side
Average
770 ft 235 m
all land inside township boundaries
Amboy Township spans about 220 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.
| Figure | Elevation |
|---|---|
| Typical Where people live: half of residents higher, half lower | 750 ft230 m |
| Highest point Inside township boundaries, on the west side | 920 ft280 m |
| Lowest point Inside township boundaries, on the southwest side | 700 ft215 m |
| Town center USGS map point for Amboy Township | 750 ft225 m |
| Average of all land | 770 ft235 m |
Elevation profile, south to north
6.0 mi south to north through the town center.
Topographic Map
- Location
- Township in Lee County, Illinois, United States
- Population
- 2,763 2024 est.
- Land area
- 35.3 sq mi + 0.2 sq mi water
- Density
- 78 per sq mi
- Coordinates
- 41.7142° N, 89.3287° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Green River → Mississippi River → Gulf of America
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Sources: U.S. Census Bureau, USGS
Nearby Places
Nearby towns by typical elevation
- Sublette920 ft
- Sublette Township910 ft
- May Township, Lee County870 ft
- Bradford Township810 ft
- Lee Center790 ft
- Lee Center Township790 ft
- Nachusa790 ft
- Nachusa Township790 ft
- Amboy Township750 ft
- Amboy750 ft
- Marion Township, Lee County710 ft
Rankings by typical elevation
- Towns in Illinois526th highest of 2,872
- Towns in Lee County25th highest of 36
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).
- Pits: the lowest point is the lowest ground outside closed hollows (quarry floors, mine pits, terrain-model artifacts): any hollow under 0.4 sq mi (1 km²), and any hollow under 2 sq mi (5 km²) whose floor is more than 100 ft (30 m) below its rim; and outside patches below sea level of under 0.4 sq mi (1 km²). The single lowest 3DEP cell, 670 ft at 41.7160° N, 89.3588° W, is in such a hollow or patch and is not counted.
- 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.