St. Jacob Township, IL Elevation & Topographic Map
Elevation
620 ft 190 m580 ft 175 m560 ft 170 m510 ft 155 m470 ft 145 m450 ft 135 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
St. Jacob Township sits at about 510 ft (155 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
510 ft 155 m
most residents: 480–530 ft
Lowest
450 ft 135 m
on the southwest side
Highest
620 ft 190 m
on the east side
Average
500 ft 155 m
all land inside township boundaries
St. Jacob 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 | 510 ft155 m |
| Highest point Inside township boundaries, on the east side | 620 ft190 m |
| Lowest point Inside township boundaries, on the southwest side | 450 ft135 m |
| Town center USGS map point for St. Jacob Township | 520 ft160 m |
| Airport (BLV) FAA airport elevation, the highest point of its runways, 7.7 mi south of the township boundaries | 459 ft140 m |
| Average of all land | 500 ft155 m |
Elevation profile, west to east
5.9 mi west to east through the town center.
Topographic Map
- Location
- Township in Madison County, Illinois, United States
- Population
- 2,874 2024 est.
- Land area
- 35.8 sq mi + 0.2 sq mi water
- Density
- 80 per sq mi
- Coordinates
- 38.7139° N, 89.7681° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Silver Creek → Kaskaskia River → Mississippi River → Gulf of America
- Airport
- Scott Afb/Midamerica St Louis (BLV) 459 ft
⤓ 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
- Troy560 ft
- Jarvis Township560 ft
- Saline Township530 ft
- Highland530 ft
- Helvetia Township520 ft
- Marine520 ft
- Marine Township520 ft
- St. Jacob510 ft
- St. Jacob Township510 ft
- Lebanon480 ft
- Lebanon Township480 ft
Rankings by typical elevation
- Towns in Illinois2,400th highest of 2,872
- Towns in Madison County39th highest of 54
Peaks and hills nearest, by height
- Fox Hill600 ft
- Browns Mound, Madison County590 ft
- Berger Hill560 ft
- Neudeckers Mountain560 ft
- Emerald Mound540 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.