Yuma County, AZ Elevation & Topographic Map

Topographic elevation map of Yuma County, Arizona, shaded from 73 ft on the west side to 4,882 ft on Signal Peak
Elevation
4,880 ft 1,490 m3,680 ft 1,120 m3,080 ft 940 m1,880 ft 570 m670 ft 205 m73 ft 22 m
Zoom in for contour lines
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

Yuma County averages about 860 ft (260 m) above sea level across all its land. Its ground runs from 73 ft on the west side to 4,882 ft on Signal Peak.

Average elevation
860 ft 260 m
all land inside the county
Highest
4,882 ft 1,488 m
on Signal Peak
Lowest
73 ft 22 m
on the west side

Yuma County spans about 4,807 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 land860 ft260 m
Highest point
Inside the county, on Signal Peak (NGS survey height)
4,882 ft1,488 m
Lowest point
Inside the county, on the west side
73 ft22 m

Elevation profile, west to east

80 mi west to east through Yuma.

Topographic Map

Topographic elevation map of Yuma County, Arizona, shaded from 73 ft on the west side to 4,882 ft on Signal Peak
County boundary (dashed) over shaded terrain, with contours every 200 ft (61 m).
Location
County in Arizona, United States
Population
220,310 2024 est.
Land area
5,513.8 sq mi + 5.1 sq mi water
Density
40 per sq mi
Time zone
Mountain UTC−7, no daylight saving
Landform region
Basin and Range
Drains to
Gulf of California 96%
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Pima County2,650 ft
  2. Maricopa County1,640 ft
  3. La Paz County1,360 ft
  4. Yuma County860 ft
  5. Imperial County, CA410 ft

Rankings by average elevation

Peaks and hills highest inside

  • Signal Peak4,882 ft
  • Castle Dome Peak3,760 ft
  • Sheep Mountain3,050 ft
  • Mohawk Peak2,767 ft
  • Buck Peak2,629 ft
All 21 towns in Yuma County by typical elevation
  1. Aztec510 ft
  2. Dateland440 ft
  3. Wellton Hills370 ft
  4. Tacna340 ft
  5. Fortuna Foothills310 ft
  6. Wellton280 ft
  7. Yuma Proving Ground260 ft
  8. Martinez Lake190 ft
  9. Yuma190 ft
  10. Rancho Mesa Verde190 ft
  11. Orange Grove Mobile Manor180 ft
  12. Buckshot150 ft
  13. El Prado Estates150 ft
  14. San Luis150 ft
  15. Avenue B and C130 ft
  16. Donovan Estates130 ft
  17. Padre Ranchitos120 ft
  18. Wall Lane110 ft
  19. Drysdale110 ft
  20. Somerton110 ft
  21. Gadsden100 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 2 arc-second (≈200 ft, 62 m) grid, coarsened from 1 arc-second so the whole area fits one run. Land means the boundary minus Census area water (on this grid, water areas of at least half a cell).
  • Highest and lowest: the highest land cell, re-read at 1 arc-second around the 25 highest grid cells; 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, re-read at 1 arc-second around the 25 lowest grid cells; coastal ground within 3 ft (1 m) of named tidal water counts as sea level.
  • Pits: the lowest point is the lowest ground outside closed hollows (quarry floors, mine pits, terrain-model artifacts): any hollow under 0.4 sq mi (1 km²), and any hollow under 2 sq mi (5 km²) whose floor is more than 100 ft (30 m) below its rim; and outside patches below sea level of under 0.4 sq mi (1 km²). The single lowest 3DEP cell, 71 ft at 32.5632° N, 114.7918° W, is in such a hollow or patch and is not counted.
  • 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.