Twin Falls, ID Elevation & Topographic Map

Topographic elevation map of Twin Falls, Idaho, shaded from 3,150 ft on the northeast side to 3,940 ft on the south side
Elevation
3,940 ft 1,200 m3,740 ft 1,140 m3,640 ft 1,110 m3,450 ft 1,050 m3,250 ft 990 m3,150 ft 960 m
Contours every 200 ft, bold every 1,000 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.
City area
Fades everything outside the official city limits (US Census).

Elevation Data

Twin Falls sits at about 3,720 ft (1,135 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
3,720 ft 1,135 m
most residents: 3,650–3,800 ft
Lowest
3,150 ft 960 m
on the northeast side
Highest
3,940 ft 1,200 m
on the south side
Average
3,730 ft 1,135 m
all land inside city limits

Twin Falls spans about 790 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
3,720 ft1,135 m
Highest point
Inside city limits, on the south side
3,940 ft1,200 m
Lowest point
Inside city limits, on the northeast side
3,150 ft960 m
Town center
USGS map point for Twin Falls
3,730 ft1,140 m
Airport (TWF)
FAA airport elevation, the highest point of its runways, 2.3 mi south of the city limits
4,153 ft1,266 m
Average of all land3,730 ft1,135 m

Elevation profile, south to north

3.8 mi south to north through the town center.

Altitude Effects

What 3,720 ft means day to day, worked out from the typical elevation.

Water boils at
205.1 °F96.2 °C

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

Air pressure
87% of sea level

26.1 inHg (88.4 kPa): each breath holds 13% less air.

Oxygen equivalent
18.3% at sea level

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

Sunburn
+7% more UV

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

Topographic Map

Topographic elevation map of Twin Falls, Idaho, shaded from 3,150 ft on the northeast side to 3,940 ft on the south side
City limits (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
City in Twin Falls County, Idaho, United States
Population
55,589 2024 est.
Land area
19.9 sq mi + 0.1 sq mi water
Density
2,796 per sq mi
Coordinates
42.5630° N, 114.4609° W
Time zone
Mountain UTC−7 / −6
Landform region
Columbia Plateau
Drains to
Snake River → Columbia River → Pacific Ocean
Airport
Joslin Fld/magic Valley Regional (TWF) 4,153 ft
ZIP codes 2
83301 83341
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Sources: U.S. Census Bureau, USGS, FAA

Nearby Places

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).
  • 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.