Unicoi County, TN Elevation & Topographic Map

Topographic elevation map of Unicoi County, Tennessee, shaded from 1,570 ft on the north side to 5,516 ft on Big Bald
Elevation
5,520 ft 1,680 m4,530 ft 1,380 m4,040 ft 1,230 m3,050 ft 930 m2,060 ft 630 m1,570 ft 480 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

Unicoi County averages about 2,750 ft (840 m) above sea level across all its land. Its ground runs from 1,570 ft on the north side to 5,516 ft on Big Bald.

Average elevation
2,750 ft 840 m
all land inside the county
Highest
5,516 ft 1,681 m
on Big Bald
Lowest
1,570 ft 480 m
on the north side

Unicoi County spans about 3,950 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.

FigureElevation
Average of all land2,750 ft840 m
Highest point
Inside the county, on Big Bald (NGS survey height)
5,516 ft1,681 m
Lowest point
Inside the county, on the north side
1,570 ft480 m

Elevation profile, west to east

17 mi west to east through Erwin.

Topographic Map

Topographic elevation map of Unicoi County, Tennessee, shaded from 1,570 ft on the north side to 5,516 ft on Big Bald
County boundary (dashed) over shaded terrain, with contours every 200 ft (61 m).
Location
County in Tennessee, United States
Population
17,872 2024 est.
Land area
186.1 sq mi + 0.3 sq mi water
Density
96 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
Blue Ridge 96%
Drains to
Gulf of America
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Yancey County, NC3,350 ft
  2. Mitchell County, NC3,210 ft
  3. Unicoi County2,750 ft
  4. Madison County, NC2,680 ft
  5. Carter County2,670 ft
  6. Washington County1,720 ft
  7. Greene County1,540 ft

Rankings by average elevation

Peaks and hills highest inside

  • Big Stamp5,516 ft
  • Unaka Mountain5,170 ft
  • Divide Mountain4,570 ft
  • Wilson Knob, Unicoi County4,570 ft
  • Frozen Knob4,390 ft
All 3 towns in Unicoi County by typical elevation
  1. Unicoi1,930 ft
  2. Erwin1,740 ft
  3. Banner Hill1,730 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; it is a named summit, so its height is the peak method: the 3DEP top on a ~7 ft (2 m) window, or the NGS published height when a survey mark sits within 160 ft (50 m) of it. 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.