Union County, IN Elevation & Topographic Map

Elevation

1,140 ft 345 m1,040 ft 315 m990 ft 300 m890 ft 270 m790 ft 240 m740 ft 225 m

Contours every 500 ft, bold every 2,500 ft

USGS 3DEP · U.S. Census Bureau

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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 990 ft (300 m) above sea level across all its land. Its ground runs from 740 ft on the southwest side to 1,140 ft on the northeast side.

Average elevation

990 ft 300 m

all land inside the county

Highest

1,140 ft 345 m

on the northeast side

Lowest

740 ft 225 m

on the southwest side

Union County spans about 400 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	990 ft300 m
Highest point Inside the county, on the northeast side	1,140 ft345 m
Lowest point Inside the county, on the southwest side	740 ft225 m

Elevation profile, west to east

12 mi west to east through Center Township, Union County.

Topographic Map

Location: County in Indiana, United States
Population: 6,884 2024 est.
Land area: 161.2 sq mi + 4.0 sq mi water
Density: 43 per sq mi
Time zone: Eastern UTC−5 / −4
Landform region: Central Lowland
Drains to: Gulf of America

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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

Wayne County1,050 ft
Preble County, OH1,040 ft
Union County990 ft
Fayette County970 ft
Franklin County920 ft
Butler County, OH780 ft

Rankings by average elevation

Counties in Indiana5th highest of 91
Counties in the United States1,419th highest of 3,151

All 9 towns in Union County by typical elevation

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.