Morgan County, IL Elevation & Topographic Map
Elevation
720 ft 220 m640 ft 195 m610 ft 185 m530 ft 160 m460 ft 140 m420 ft 130 m
Contours every 500 ft, bold every 2,500 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.
- County area
- Fades everything outside the official county boundary (US Census).
Elevation Data
Morgan County averages about 620 ft (190 m) above sea level across all its land. Its ground runs from 420 ft on the west side to 720 ft on The Mound.
Average elevation
620 ft 190 m
all land inside the county
Highest
720 ft 220 m
on The Mound
Lowest
420 ft 130 m
on the west side
Morgan County spans about 300 ft of height, so no single spot tells the whole story. The ruler shows where most of its land lies, and where the other numbers you'll see come from.
| Figure | Elevation |
|---|---|
| Average of all land | 620 ft190 m |
| Highest point Inside the county, on The Mound | 720 ft220 m |
| Lowest point Inside the county, on the west side | 420 ft130 m |
Elevation profile, south to north
24 mi south to north through Jacksonville.
Topographic Map
- Location
- County in Illinois, United States
- Population
- 32,618 2024 est.
- Land area
- 569.0 sq mi + 3.5 sq mi water
- Density
- 57 per sq mi
- Time zone
- Central UTC−6 / −5
- Landform region
- Central Lowland
- Drains to
- Gulf of America
⤓ 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
Neighboring counties sharing a border, by average
- Brown County630 ft
- Macoupin County630 ft
- Morgan County620 ft
- Pike County600 ft
- Sangamon County600 ft
- Greene County540 ft
- Cass County540 ft
- Scott County540 ft
Rankings by average elevation
- Counties in Illinois52nd highest of 102
- Counties in the United States2,187th highest of 3,151
Peaks and hills highest inside
- The Mound, Morgan County720 ft
- Allison Mound690 ft
All 12 towns in Morgan County by typical elevation
- Murrayville690 ft
- Franklin690 ft
- Woodson680 ft
- Waverly680 ft
- Alexander660 ft
- Chapin620 ft
- Lynnville620 ft
- South Jacksonville620 ft
- Jacksonville610 ft
- Literberry600 ft
- Concord600 ft
- Meredosia450 ft
How we measure
- Average: every USGS 3DEP bare-earth cell of land inside the Census county boundary (TIGER/Line, Jan 1 2026), weighted equally, on a 1 arc-second (≈100 ft, 30 m) grid. Land means the boundary minus Census area water.
- Highest and lowest: the highest land cell. Lowest: the lowest land cell; coastal ground within 3 ft (1 m) of named tidal water counts as sea level.
- Nearby Places: neighboring counties and rankings use each one's average elevation, on its own grid, the same figure its page shows. Peaks and hills: the highest summits inside the county with at least 980 ft (300 m) of prominence, then the highest federal (GNIS) summits inside it 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).
- Towns: each town's typical elevation (population-weighted median of its own 2020 blocks at 1 arc-second); a town is listed when any of its 2020 residents live in the county.
- 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 (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 (TIGER boundaries and water, 2020 blocks, 2024 population estimates, county adjacency); NOAA NGS survey heights; BTS time zones. All public domain.