Willow Lake, IL Elevation & Topographic Map
Elevation
900 ft 275 m860 ft 265 m850 ft 260 m810 ft 245 m770 ft 235 m760 ft 230 m
Contours every 100 ft, bold every 500 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
Willow Lake sits at about 820 ft (250 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
820 ft 250 m
most residents: 790–870 ft
Lowest
760 ft 230 m
on the south side
Highest
900 ft 275 m
on the northeast side
Average
820 ft 250 m
all land inside the CDP boundary
Willow Lake spans about 140 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 | 820 ft250 m |
| Highest point Inside the CDP boundary, on the northeast side | 900 ft275 m |
| Lowest point Inside the CDP boundary, on the south side | 760 ft230 m |
| Town center USGS map point for Willow Lake | 800 ft245 m |
| Airport (FEP) FAA airport elevation, the highest point of its runways, 5.4 mi southeast of the CDP boundary | 859 ft262 m |
| Average of all land | 820 ft250 m |
Elevation profile, south to north
1.6 mi south to north through the town center.
Topographic Map
- Location
- Unincorporated community (census-designated place) in Stephenson County, Illinois, United States
- Population
- 1,026 2020 Census
- Land area
- 2.7 sq mi
- Density
- 376 per sq mi
- Coordinates
- 42.3330° N, 89.6363° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Pecatonica River → Rock River → Mississippi River → Gulf of America
- Airport
- Albertus (FEP) 859 ft
- ZIP codes 1
- 61032
⤓ Download this map
WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.
Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Dakota Township930 ft
- Dakota930 ft
- Erin Township930 ft
- Buckeye Township840 ft
- Lancaster Township840 ft
- Silver Creek Township840 ft
- Cedarville840 ft
- Florence Township840 ft
- Willow Lake820 ft
- Harlem Township, Stephenson County820 ft
- Freeport820 ft
Rankings by typical elevation
- Towns in Illinois192nd highest of 2,872
- Towns in Stephenson County25th highest of 30
Peaks and hills nearest, by height
- Bunker Hill, Stephenson County960 ft
- Coffman Bluff950 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).
- 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, 750 ft at 42.3232° N, 89.6379° 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.
- Willow Lake 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.