Gregg County, TX Elevation & Topographic Map
Elevation
570 ft 175 m480 ft 145 m440 ft 135 m350 ft 105 m270 ft 80 m220 ft 70 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
Gregg County averages about 340 ft (100 m) above sea level across all its land. Its ground runs from 220 ft on the southeast side to 570 ft on the southwest side.
Average elevation
340 ft 100 m
all land inside the county
Highest
570 ft 175 m
on the southwest side
Lowest
220 ft 70 m
on the southeast side
Gregg 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 | 340 ft100 m |
| Highest point Inside the county, on the southwest side | 570 ft175 m |
| Lowest point Inside the county, on the southeast side | 220 ft70 m |
Elevation profile, south to north
20 mi south to north through Longview.
Topographic Map
- Location
- County in Texas, United States
- Population
- 126,679 2024 est.
- Land area
- 273.4 sq mi + 2.4 sq mi water
- Density
- 463 per sq mi
- Time zone
- Central UTC−6 / −5
- Landform region
- Coastal Plain
- 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
- Smith County450 ft
- Rusk County410 ft
- Upshur County370 ft
- Gregg County340 ft
- Harrison County300 ft
Rankings by average elevation
- Counties in Texas196th highest of 254
- Counties in the United States2,570th highest of 3,151
All 10 towns in Gregg County by typical elevation
- Liberty City390 ft
- Clarksville City370 ft
- Warren City370 ft
- White Oak370 ft
- Longview360 ft
- Kilgore350 ft
- Gladewater340 ft
- Lake Cherokee partly310 ft
- Easton310 ft
- Lakeport290 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.