Oakdale Township, IL Elevation & Topographic Map
Elevation
580 ft 175 m550 ft 165 m530 ft 160 m500 ft 150 m460 ft 140 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
Oakdale 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 northwest side
Highest
580 ft 175 m
on the west side
Average
510 ft 155 m
all land inside township boundaries
Oakdale Township spans about 130 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 west side | 580 ft175 m |
| Lowest point Inside township boundaries, on the northwest side | 450 ft135 m |
| Town center USGS map point for Oakdale Township | 520 ft160 m |
| Average of all land | 510 ft155 m |
Elevation profile, west to east
6.2 mi west to east through the town center.
Topographic Map
- Location
- Township in Washington County, Illinois, United States
- Population
- 548 2024 est.
- Land area
- 37.4 sq mi + 0.1 sq mi water
- Density
- 15 per sq mi
- Coordinates
- 38.2617° N, 89.5015° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Elkhorn Creek → Kaskaskia River → Mississippi River → Gulf of America
⤓ Download this map
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Sources: U.S. Census Bureau, USGS
Nearby Places
Nearby towns by typical elevation
- Coulterville550 ft
- Oakdale520 ft
- Nashville Township510 ft
- Nashville510 ft
- Tilden510 ft
- Oakdale Township510 ft
- Pilot Knob Township500 ft
- Bolo Township490 ft
- Lively Grove Township480 ft
- Addieville470 ft
- Plum Hill Township470 ft
Rankings by typical elevation
- Towns in Illinois2,411th highest of 2,872
- Towns in Washington County15th highest of 28
Peaks and hills nearest, by height
- Dutch Hill, St. Clair County490 ft
- Point Lookout480 ft
- Heimanns Hill420 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, 450 ft at 38.3049° N, 89.5335° 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.