Adair, IL Elevation & Topographic Map
Elevation
670 ft 205 m660 ft 200 m660 ft 200 m650 ft 200 m640 ft 195 m640 ft 195 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
Adair sits at about 650 ft (195 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
650 ft 195 m
most residents: 640–650 ft
Lowest
640 ft 195 m
on the west side
Highest
650 ft 200 m
on the northeast side
Average
650 ft 195 m
all land inside the CDP boundary
Adair is nearly flat: its ground varies by only about 10 ft, so the figures below sit close together.
| Figure | Elevation |
|---|---|
| Typical Where people live: half of residents higher, half lower | 650 ft195 m |
| Highest point Inside the CDP boundary, on the northeast side | 650 ft200 m |
| Lowest point Inside the CDP boundary, on the west side | 640 ft195 m |
| Town center USGS map point for Adair | 650 ft200 m |
| Average of all land | 650 ft195 m |
Topographic Map
- Location
- Unincorporated community (census-designated place) in McDonough County, Illinois, United States
- Population
- 212 2020 Census
- Land area
- 0.4 sq mi
- Density
- 493 per sq mi
- Coordinates
- 40.4189° N, 90.4968° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- La Moine River → Illinois River → Mississippi River → Gulf of America
- ZIP codes 1
- 61411
⤓ Download this map
WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.
Sources: U.S. Census Bureau, USGS
Nearby Places
Nearby towns by typical elevation
- Table Grove720 ft
- Farmers Township710 ft
- Macomb Township670 ft
- Bardolph670 ft
- Eldorado Township660 ft
- Mound Township, McDonough County660 ft
- Scotland Township660 ft
- Marietta650 ft
- New Salem Township, McDonough County650 ft
- Adair650 ft
- Harris Township640 ft
Rankings by typical elevation
- Towns in Illinois1,462nd highest of 2,872
- Towns in McDonough County27th highest of 29
Peaks and hills nearest, by height
- Dyers Mound730 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).
- 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, 640 ft at 40.4174° N, 90.5051° 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.
- Adair 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); BTS time zones. All public domain.