Duncan, AZ Elevation & Topographic Map
Elevation
3,920 ft 1,195 m3,850 ft 1,175 m3,820 ft 1,165 m3,750 ft 1,140 m3,670 ft 1,120 m3,640 ft 1,110 m
Contours every 100 ft, bold every 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.
- Town area
- Fades everything outside the official town limits (US Census).
Elevation Data
Duncan sits at about 3,740 ft (1,140 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
3,740 ft 1,140 m
most residents: 3,650–3,790 ft
Lowest
3,640 ft 1,110 m
near the middle
Highest
3,920 ft 1,195 m
on the north side
Average
3,730 ft 1,140 m
all land inside town limits
Duncan spans about 280 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.
| Figure | Elevation |
|---|---|
| Typical Where people live: half of residents higher, half lower | 3,740 ft1,140 m |
| Highest point Inside town limits, on the north side | 3,920 ft1,195 m |
| Lowest point Inside town limits, near the middle | 3,640 ft1,110 m |
| Town center USGS map point for Duncan | 3,650 ft1,110 m |
| Average of all land | 3,730 ft1,140 m |
Elevation profile, south to north
1.2 mi south to north through the town center.
Altitude Effects
What 3,740 ft means day to day, worked out from the typical elevation.
Water boils at
205.1 °F96.1 °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
- Location
- Town in Greenlee County, Arizona, United States
- Population
- 671 2024 est.
- Land area
- 2.3 sq mi
- Density
- 296 per sq mi
- Coordinates
- 32.7215° N, 109.1053° W
- Time zone
- Mountain UTC−7, no daylight saving
- Landform region
- Basin and Range
- Drains to
- Gila River → Colorado River → Gulf of California
- ZIP codes 1
- 85534
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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
Nearby Places
Nearby towns by typical elevation
- Buckhorn, NM4,760 ft
- Morenci4,050 ft
- Redrock, NM4,040 ft
- Clifton3,940 ft
- Virden, NM3,760 ft
- Duncan3,740 ft
- Franklin3,730 ft
- San Simon3,610 ft
- York3,530 ft
- San Jose3,020 ft
- Solomon2,970 ft
Rankings by typical elevation
- Towns in Arizona214th highest of 467
- Towns in Greenlee County3rd highest of 5
Peaks and hills nearest, by height
- Brushy Mountain, Grant County7,633 ft
- Maverick Hill7,470 ft
- Turtle Mountain7,000 ft
- Guthrie Peak6,450 ft
- Whitlock Peak6,200 ft
How we measure
- Typical elevation: the population-weighted median: every 2020 Census block inside the town 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 town 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); BTS time zones; NOAA NGS survey heights. All public domain.