Mackay, ID Elevation & Topographic Map

Topographic elevation map of Mackay, Idaho, shaded from 5,870 ft on the southeast side to 5,920 ft at the foot of the White Knob Mountains
Elevation
5,920 ft 1,805 m5,910 ft 1,800 m5,900 ft 1,800 m5,890 ft 1,795 m5,880 ft 1,790 m5,870 ft 1,790 m
Contours every 40 ft, bold every 200 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.
City area
Fades everything outside the official city limits (US Census).

Elevation Data

Mackay sits at about 5,910 ft (1,800 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
5,910 ft 1,800 m
most residents: 5,900–5,910 ft
Lowest
5,870 ft 1,790 m
on the southeast side
Highest
5,920 ft 1,805 m
at the foot of the White Knob Mountains
Average
5,900 ft 1,800 m
all land inside city limits

Mackay spans about 50 ft of height, so no single spot tells the whole story. The ruler shows where its people live, and where the other numbers you'll see come from.

FigureElevation
Typical
Where people live: half of residents higher, half lower
5,910 ft1,800 m
Highest point
Inside city limits, at the foot of the White Knob Mountains
5,920 ft1,805 m
Lowest point
Inside city limits, on the southeast side
5,870 ft1,790 m
Town center
USGS map point for Mackay
5,910 ft1,800 m
Airport (U62)
FAA airport elevation, the highest point of its runways
5,892 ft1,796 m
Average of all land5,900 ft1,800 m
Nearest peak
Redbird Mountain, 7.4 mi southwest of the city limits
11,270 ft3,435 m

Altitude Effects

What 5,910 ft means day to day, worked out from the typical elevation.

Water boils at
201.0 °F93.9 °C

vs 212 °F at sea level; USDA: food takes longer to cook.

Air pressure
80% of sea level

24.1 inHg (81.5 kPa): each breath holds 20% less air.

Oxygen equivalent
16.8% at sea level

Air is still 21% oxygen, just thinner. Normal at the coast: 20.9%.

Sunburn
+12% more UV

EPA: UV rises about 2% for every 1,000 ft.

Topographic Map

Topographic elevation map of Mackay, Idaho, shaded from 5,870 ft on the southeast side to 5,920 ft at the foot of the White Knob Mountains
City limits (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
City in Custer County, Idaho, United States
Population
480 2024 est.
Land area
0.9 sq mi
Density
554 per sq mi
Coordinates
43.9146° N, 113.6134° W
Time zone
Mountain UTC−7 / −6
Landform region
Northern Rocky Mountains
Drains to
Big Lost River → Closed basin (does not reach the sea)
Airport
Mackay (U62) 5,892 ft
ZIP codes 1
83251
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WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.

Sources: U.S. Census Bureau, USGS, FAA

Nearby Places

Nearby towns by typical elevation

  1. Sun Valley6,000 ft
  2. Mackay5,910 ft
  3. Ketchum5,840 ft
  4. Clayton5,620 ft
  5. Moore5,470 ft
  6. Arco5,330 ft
  7. Butte City5,320 ft
  8. Hailey5,310 ft
  9. Bellevue5,190 ft
  10. Gannett4,920 ft
  11. Carey4,780 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Mount Breitenbach12,130 ft
  • Redbird Mountain11,270 ft
  • Porphyry Peak10,017 ft
  • Sheep Mountain, Custer County9,620 ft
  • Appendicitis Hill8,528 ft
How we measure
  • Typical elevation: the population-weighted median: every 2020 Census block inside the city limits, at its USGS 3DEP height, weighted by the people who live there. Half of residents live higher, half lower.
  • Lowest, highest, average: USGS 3DEP bare-earth heights on a 1 arc-second (≈100 ft, 30 m) grid, land only, inside the Census city limits (TIGER, Jan 1 2026).
  • 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, 5,870 ft at 43.9082° N, 113.5982° W, is in such a hollow or patch and is not counted.
  • Nearby Places: nearby towns and rankings use each town's typical elevation, so every town is compared like for like. Rankings count every city, town, township and census-designated place, including places inside a town. Peaks and hills: the nearest summits with at least 980 ft (300 m) of prominence within 62 mi (100 km), then federal (GNIS) summits within 16 mi (25 km) 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).
  • Altitude effects: standard-atmosphere formulas applied to the typical elevation; UV from EPA's rule of thumb (about 2% per 1,000 ft).
  • 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 (FAA airport elevation, 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 (boundaries, 2020 blocks, 2024 population estimates, Gazetteer areas, ZIP code areas); FAA airport data; BTS time zones; NOAA NGS survey heights. All public domain.