Smith County, TX Elevation & Topographic Map

Topographic elevation map of Smith County, Texas, shaded from 250 ft on the northeast side to 670 ft on the south side
Elevation
670 ft 205 m570 ft 175 m510 ft 155 m410 ft 125 m310 ft 95 m250 ft 80 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

Smith County averages about 450 ft (135 m) above sea level across all its land. Its ground runs from 250 ft on the northeast side to 670 ft on the south side.

Average elevation
450 ft 135 m
all land inside the county
Highest
670 ft 205 m
on the south side
Lowest
250 ft 80 m
on the northeast side

Smith County spans about 420 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 land450 ft135 m
Highest point
Inside the county, on the south side
670 ft205 m
Lowest point
Inside the county, on the northeast side
250 ft80 m

Elevation profile, south to north

31 mi south to north through Tyler.

Topographic Map

Topographic elevation map of Smith County, Texas, shaded from 250 ft on the northeast side to 670 ft on the south side
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Texas, United States
Population
249,091 2024 est.
Land area
921.5 sq mi + 28.2 sq mi water
Density
270 per sq mi
Time zone
Central UTC−6 / −5
Landform region
Coastal Plain
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. Van Zandt County470 ft
  2. Smith County450 ft
  3. Wood County430 ft
  4. Henderson County410 ft
  5. Rusk County410 ft
  6. Cherokee County390 ft
  7. Upshur County370 ft
  8. Gregg County340 ft

Rankings by average elevation

  • Counties in Texas168th highest of 254
  • Counties in the United States2,400th highest of 3,151

Peaks and hills highest inside

  • Starrville Mountain640 ft
  • Goodman Mountain620 ft
  • Todd Mountain, Smith County610 ft
  • Mount Sinai580 ft
All 12 towns in Smith County by typical elevation
  1. Lindale550 ft
  2. Tyler530 ft
  3. Bullard500 ft
  4. Arp500 ft
  5. Overton partly500 ft
  6. Hideaway490 ft
  7. Noonday470 ft
  8. Troup460 ft
  9. New Chapel Hill450 ft
  10. Whitehouse450 ft
  11. Winona410 ft
  12. Emerald Bay370 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.