Harrisburg Township, IL Elevation & Topographic Map
Elevation
510 ft 155 m460 ft 140 m440 ft 135 m400 ft 125 m360 ft 110 m340 ft 105 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.
- Township area
- Fades everything outside the official township boundaries (US Census).
Elevation Data
Harrisburg Township sits at about 380 ft (115 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
380 ft 115 m
most residents: 360–410 ft
Lowest
340 ft 105 m
on the southeast side
Highest
510 ft 155 m
on the southwest side
Average
380 ft 115 m
all land inside township boundaries
Harrisburg Township spans about 170 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 | 380 ft115 m |
| Highest point Inside township boundaries, on the southwest side | 510 ft155 m |
| Lowest point Inside township boundaries, on the southeast side | 340 ft105 m |
| Town center USGS map point for Harrisburg Township | 390 ft120 m |
| Airport (HSB) FAA airport elevation, the highest point of its runways, 2.4 mi north of the township boundaries | 398 ft121 m |
| Average of all land | 380 ft115 m |
Elevation profile, west to east
6.1 mi west to east through the town center.
Topographic Map
- Location
- Township in Saline County, Illinois, United States
- Population
- 9,681 2024 est.
- Land area
- 36.5 sq mi + 0.9 sq mi water
- Density
- 265 per sq mi
- Coordinates
- 37.7384° N, 88.5406° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Ohio River → Mississippi River → Gulf of America
- Airport
- Harrisburg-Raleigh (HSB) 398 ft
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Independence Township430 ft
- Brushy Township430 ft
- Raleigh Township420 ft
- Raleigh410 ft
- East Eldorado Township400 ft
- Carrier Mills Township400 ft
- Carrier Mills400 ft
- Harrisburg Township380 ft
- Harrisburg380 ft
- Muddy370 ft
- Cottage Township370 ft
Rankings by typical elevation
- Towns in Illinois2,833rd highest of 2,872
- Towns in Saline County15th highest of 19
Peaks and hills nearest, by height
- Williams Hill1,060 ft
- Bald Knob, Saline County1,000 ft
- Wamble Mountain940 ft
- Cave Hill930 ft
- Colbert Hill580 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); FAA airport data; BTS time zones. All public domain.