Castleford, ID Elevation & Topographic Map
Elevation
3,900 ft 1,190 m3,890 ft 1,185 m3,880 ft 1,185 m3,880 ft 1,180 m3,870 ft 1,180 m3,860 ft 1,180 m
Contours every 40 ft, bold every 200 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
Castleford sits at about 3,870 ft (1,180 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
3,870 ft 1,180 m
nearly all residents at this height
Lowest
3,860 ft 1,180 m
on the north side
Highest
3,870 ft 1,180 m
near the middle
Average
3,870 ft 1,180 m
all land inside city limits
Castleford is nearly flat: its ground varies by only about 10 ft, so the figures below sit close together.
| Figure | Elevation |
|---|---|
| Typical Where people live: half of residents higher, half lower | 3,870 ft1,180 m |
| Highest point Inside city limits, near the middle | 3,870 ft1,180 m |
| Lowest point Inside city limits, on the north side | 3,860 ft1,180 m |
| Airport (U03) FAA airport elevation, the highest point of its runways, 6.2 mi northeast of the city limits | 3,663 ft1,116 m |
| Average of all land | 3,870 ft1,180 m |
Altitude Effects
What 3,870 ft means day to day, worked out from the typical elevation.
Water boils at
204.8 °F96.0 °C
vs 212 °F at sea level; USDA: food takes longer to cook.
Air pressure
87% of sea level
26.0 inHg (87.9 kPa): each breath holds 13% less air.
Oxygen equivalent
18.2% at sea level
Air is still 21% oxygen, just thinner. Normal at the coast: 20.9%.
Sunburn
+8% more UV
EPA: UV rises about 2% for every 1,000 ft.
Topographic Map
- Location
- City in Twin Falls County, Idaho, United States
- Population
- 226 2024 est.
- Land area
- 0.1 sq mi
- Density
- 2,354 per sq mi
- Coordinates
- 42.5204° N, 114.8722° W
- Time zone
- Mountain UTC−7 / −6
- Landform region
- Columbia Plateau
- Drains to
- Snake River → Columbia River → Pacific Ocean
- Airport
- Buhl Municipal (U03) 3,663 ft
- ZIP codes 1
- 83321
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
Rankings by typical elevation
- Towns in Idaho113th highest of 234
- Towns in Twin Falls County5th highest of 8
Peaks and hills nearest, by height
- Elk Mountain8,830 ft
- Ellen D Mountain8,639 ft
- Gollaher Mountain8,157 ft
- Monument Peak, Cassia County8,065 ft
- Davis Mountain6,810 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).
- 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.