Lacon Township, IL Elevation & Topographic Map
Elevation
670 ft 205 m610 ft 185 m580 ft 180 m530 ft 160 m470 ft 145 m440 ft 135 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
Lacon Township sits at about 500 ft (150 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
500 ft 150 m
most residents: 470–540 ft
Lowest
440 ft 135 m
on the north side
Highest
670 ft 205 m
on the south side
Average
520 ft 160 m
all land inside township boundaries
Lacon Township spans about 230 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 | 500 ft150 m |
| Highest point Inside township boundaries, on the south side | 670 ft205 m |
| Lowest point Inside township boundaries, on the north side | 440 ft135 m |
| Town center USGS map point for Lacon Township | 480 ft145 m |
| Airport (C75) FAA airport elevation, the highest point of its runways, 0.3 mi east of the township boundaries | 585 ft178 m |
| Average of all land | 520 ft160 m |
Elevation profile, south to north
8.5 mi south to north through the town center.
Topographic Map
- Location
- Township in Marshall County, Illinois, United States
- Population
- 2,308 2024 est.
- Land area
- 17.4 sq mi + 4.6 sq mi water
- Density
- 133 per sq mi
- Coordinates
- 41.0248° N, 89.4112° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Illinois River → Mississippi River → Gulf of America
- Airport
- Marshall County (C75) 585 ft
⤓ Download this map
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Richland Township, Marshall County650 ft
- Whitefield Township640 ft
- Hopewell Township640 ft
- Hopewell610 ft
- Steuben Township560 ft
- Sparland550 ft
- Chillicothe Township520 ft
- Lacon Township500 ft
- Lacon500 ft
- Henry Township490 ft
- Henry490 ft
Rankings by typical elevation
- Towns in Illinois2,436th highest of 2,872
- Towns in Marshall County17th highest of 20
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.