Northern Township, IL Elevation & Topographic Map
Elevation
580 ft 175 m540 ft 165 m510 ft 155 m470 ft 145 m430 ft 130 m400 ft 125 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
Northern Township sits at about 460 ft (140 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
460 ft 140 m
most residents: 430–500 ft
Lowest
400 ft 125 m
on the southwest side
Highest
580 ft 175 m
on the northeast side
Average
460 ft 140 m
all land inside township boundaries
Northern Township spans about 180 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 | 460 ft140 m |
| Highest point Inside township boundaries, on the northeast side | 580 ft175 m |
| Lowest point Inside township boundaries, on the southwest side | 400 ft125 m |
| Average of all land | 460 ft140 m |
Elevation profile, south to north
6.0 mi south to north through the middle of Northern Township.
Topographic Map
- Location
- Township in Franklin County, Illinois, United States
- Population
- 445 2024 est.
- Land area
- 36.5 sq mi + 0.1 sq mi water
- Density
- 12 per sq mi
- Coordinates
- 38.0853° N, 88.7573° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Middle Fork Big Muddy River → Big Muddy River → Mississippi River → Gulf of America
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Sources: U.S. Census Bureau, USGS
Nearby Places
Nearby towns by typical elevation
- Flannigan Township530 ft
- Dahlgren500 ft
- Macedonia500 ft
- Dahlgren Township500 ft
- Moores Prairie Township490 ft
- Knight Prairie Township490 ft
- Ewing470 ft
- Eastern Township470 ft
- Northern Township460 ft
- Ewing Township450 ft
- Spring Garden Township420 ft
Rankings by typical elevation
- Towns in Illinois2,585th highest of 2,872
- Towns in Franklin County8th highest of 27
Peaks and hills nearest, by height
- Lowry Hill590 ft
- Radio Hill560 ft
- Bunker Hill, Hamilton County560 ft
- Webbs Hill500 ft
- Browning Hill450 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).
- 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, 400 ft at 38.0457° N, 88.7624° 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.