Dundas, IL Elevation & Topographic Map
Elevation
490 ft 150 m480 ft 145 m470 ft 145 m470 ft 140 m460 ft 140 m450 ft 140 m
Contours every 40 ft, bold every 200 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
Dundas sits at about 480 ft (145 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
480 ft 145 m
most residents: 470–480 ft
Lowest
450 ft 140 m
on the southeast side
Highest
480 ft 145 m
on the west side
Average
470 ft 145 m
all land inside the CDP boundary
Dundas spans about 30 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 | 480 ft145 m |
| Highest point Inside the CDP boundary, on the west side | 480 ft145 m |
| Lowest point Inside the CDP boundary, on the southeast side | 450 ft140 m |
| Town center USGS map point for Dundas | 480 ft145 m |
| Airport (OLY) FAA airport elevation, the highest point of its runways, 8.4 mi southwest of the CDP boundary | 482 ft147 m |
| Average of all land | 470 ft145 m |
Topographic Map
- Location
- Unincorporated community (census-designated place) in Richland County, Illinois, United States
- Population
- 146 2020 Census
- Land area
- 0.7 sq mi
- Density
- 218 per sq mi
- Coordinates
- 38.8350° N, 88.0850° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Little Wabash River → Ohio River → Mississippi River → Gulf of America
- Airport
- Olney-Noble (OLY) 482 ft
- ZIP codes 1
- 62425
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Smallwood Township530 ft
- Fox Township, Jasper County490 ft
- Denver Township490 ft
- Olney480 ft
- German Township480 ft
- Olney Township480 ft
- West Liberty480 ft
- Ste. Marie480 ft
- Ste. Marie Township480 ft
- Dundas480 ft
- Preston Township480 ft
Rankings by typical elevation
- Towns in Illinois2,515th highest of 2,872
- Towns in Richland County10th highest of 15
Peaks and hills nearest, by height
- Red Hill631 ft
- Onion Hill560 ft
- Indian Mound520 ft
- Turkey Point500 ft
- Indian Point490 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).
- 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.
- Dundas 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; NOAA NGS survey heights. All public domain.