Osco, IL Elevation & Topographic Map
Elevation
790 ft 240 m780 ft 240 m780 ft 235 m770 ft 235 m760 ft 230 m750 ft 230 m
Contours every 40 ft, bold every 200 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.
- Area
- Fades everything outside the official CDP boundary (US Census).
Elevation Data
Osco sits at about 770 ft (235 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
770 ft 235 m
nearly all residents at this height
Lowest
760 ft 230 m
on the northeast side
Highest
770 ft 235 m
on the west side
Average
770 ft 235 m
all land inside the CDP boundary
Osco is nearly flat: its ground varies by only about 10 ft, so the figures below sit close together.
| Figure | Elevation |
|---|---|
| Typical Where people live: half of residents higher, half lower | 770 ft235 m |
| Highest point Inside the CDP boundary, on the west side | 770 ft235 m |
| Lowest point Inside the CDP boundary, on the northeast side | 760 ft230 m |
| Town center USGS map point for Osco | 770 ft235 m |
| Airport (MLI) FAA airport elevation, the highest point of its runways, 13 mi northwest of the CDP boundary | 590 ft180 m |
| Average of all land | 770 ft235 m |
Topographic Map
- Location
- Unincorporated community (census-designated place) in Henry County, Illinois, United States
- Population
- 108 2020 Census
- Land area
- 0.2 sq mi
- Density
- 578 per sq mi
- Coordinates
- 41.3478° N, 90.2804° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Edwards River → Mississippi River → Gulf of America
- Airport
- Quad Cities International (MLI) 590 ft
- ZIP codes 1
- 61274
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Cambridge800 ft
- Cambridge Township800 ft
- Andover780 ft
- Andover Township780 ft
- Orion780 ft
- Western Township780 ft
- Osco770 ft
- Osco Township760 ft
- Lynn Center750 ft
- Munson Township740 ft
- Edford Township640 ft
Rankings by typical elevation
- Towns in Illinois415th highest of 2,872
- Towns in Henry County19th highest of 42
Peaks and hills nearest, by height
- Hickory Point720 ft
- Indian Hill, Henry County670 ft
How we measure
- Typical elevation: the population-weighted median: every 2020 Census block inside the CDP boundary, 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 CDP boundary (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.
- Osco is an unincorporated community; figures cover the census-designated place, a statistical area.
- Sources: USGS 3DEP, GNIS, Watershed Boundary Dataset and physiographic provinces; U.S. Census Bureau (boundaries, 2020 blocks, Gazetteer areas, ZIP code areas); FAA airport data; BTS time zones. All public domain.