Harmon County, OK Elevation & Topographic Map
Elevation
2,060 ft 630 m1,900 ft 580 m1,820 ft 555 m1,670 ft 510 m1,510 ft 460 m1,430 ft 435 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
Harmon County averages about 1,690 ft (515 m) above sea level across all its land. Its ground runs from 1,430 ft on the southeast side to 2,060 ft on the northwest side.
Average elevation
1,690 ft 515 m
all land inside the county
Highest
2,060 ft 630 m
on the northwest side
Lowest
1,430 ft 435 m
on the southeast side
Harmon County spans about 630 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 | 1,690 ft515 m |
| Highest point Inside the county, on the northwest side | 2,060 ft630 m |
| Lowest point Inside the county, on the southeast side | 1,430 ft435 m |
Elevation profile, south to north
32 mi south to north through Hollis.
Topographic Map
- Location
- County in Oklahoma, United States
- Population
- 2,315 2024 est.
- Land area
- 537.3 sq mi + 1.5 sq mi water
- Density
- 4.3 per sq mi
- Time zone
- Central UTC−6 / −5
- 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
- Collingsworth County, TX2,130 ft
- Beckham County1,950 ft
- Childress County, TX1,790 ft
- Harmon County1,690 ft
- Greer County1,650 ft
- Hardeman County, TX1,520 ft
- Jackson County1,400 ft
Rankings by average elevation
- Counties in Oklahoma11th highest of 77
- Counties in the United States744th 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.