Union County, KY Elevation & Topographic Map
Elevation
670 ft 205 m580 ft 180 m540 ft 165 m450 ft 140 m370 ft 110 m320 ft 100 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
Union County averages about 400 ft (120 m) above sea level across all its land. Its ground runs from 320 ft on the northwest side to 670 ft near the middle.
Average elevation
400 ft 120 m
all land inside the county
Highest
670 ft 205 m
near the middle
Lowest
320 ft 100 m
on the northwest side
Union County spans about 350 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 | 400 ft120 m |
| Highest point Inside the county, near the middle | 670 ft205 m |
| Lowest point Inside the county, on the northwest side | 320 ft100 m |
Elevation profile, south to north
27 mi south to north through Morganfield.
Topographic Map
- Location
- County in Kentucky, United States
- Population
- 13,178 2024 est.
- Land area
- 342.9 sq mi + 20.3 sq mi water
- Density
- 38 per sq mi
- Time zone
- Central UTC−6 / −5
- Landform region
- Interior Low Plateaus
- Drains to
- Gulf of America
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Sources: U.S. Census Bureau, USGS
Nearby Places
Neighboring counties sharing a border, by average
- Crittenden County480 ft
- Hardin County, IL480 ft
- Webster County430 ft
- Posey County, IN410 ft
- Henderson County400 ft
- Union County400 ft
- Gallatin County, IL390 ft
Rankings by average elevation
- Counties in Kentucky114th highest of 119
- Counties in the United States2,475th highest of 3,151
Peaks and hills highest inside
- Bald Hill, Union County620 ft
- Springer Hill570 ft
- Grundy Hill560 ft
- Lizard Point560 ft
- Blueberry Hill560 ft
All 5 towns in Union County by typical elevation
- Morganfield430 ft
- Breckinridge Center420 ft
- Waverly410 ft
- Sturgis370 ft
- Uniontown360 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.