Dallam County, TX Elevation & Topographic Map
Elevation
4,790 ft 1,460 m4,510 ft 1,375 m4,360 ft 1,330 m4,080 ft 1,245 m3,800 ft 1,155 m3,660 ft 1,115 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
Dallam County averages about 4,150 ft (1,265 m) above sea level across all its land. Its ground runs from 3,660 ft on the northeast side to 4,790 ft on the northwest side.
Average elevation
4,150 ft 1,265 m
all land inside the county
Highest
4,790 ft 1,460 m
on the northwest side
Lowest
3,660 ft 1,115 m
on the northeast side
Dallam County spans about 1,130 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 | 4,150 ft1,265 m |
| Highest point Inside the county, on the northwest side | 4,790 ft1,460 m |
| Lowest point Inside the county, on the northeast side | 3,660 ft1,115 m |
Elevation profile, west to east
49 mi west to east through Dalhart.
Topographic Map
- Location
- County in Texas, United States
- Population
- 7,526 2024 est.
- Land area
- 1,503.4 sq mi + 1.8 sq mi water
- Density
- 5.0 per sq mi
- Time zone
- Central UTC−6 / −5
- Landform region
- Great Plains
- Drains to
- Gulf of America 83%, Closed basin (does not reach the sea) 17%
⤓ 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
- Union County, NM5,440 ft
- Dallam County4,150 ft
- Cimarron County, OK4,140 ft
- Hartley County3,940 ft
- Sherman County3,540 ft
Rankings by average elevation
- Counties in Texas4th highest of 254
- Counties in the United States249th highest of 3,151
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.