North Sioux City, SD Elevation & Topographic Map

Topographic elevation map of North Sioux City, South Dakota, shaded from 1,080 ft near the middle to 1,120 ft on the northwest side
Elevation
1,120 ft 345 m1,110 ft 340 m1,110 ft 340 m1,100 ft 335 m1,090 ft 330 m1,080 ft 330 m
Contours every 100 ft, bold every 500 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

North Sioux City sits at about 1,110 ft (340 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
1,110 ft 340 m
most residents: 1,100–1,110 ft
Lowest
1,080 ft 330 m
near the middle
Highest
1,120 ft 345 m
on the northwest side
Average
1,110 ft 335 m
all land inside city limits

North Sioux City spans about 40 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
1,110 ft340 m
Highest point
Inside city limits, on the northwest side
1,120 ft345 m
Lowest point
Inside city limits, near the middle
1,080 ft330 m
Town center
USGS map point for North Sioux City
1,100 ft335 m
Airport (SUX)
FAA airport elevation, the highest point of its runways, 9.6 mi southeast of the city limits
1,099 ft335 m
Average of all land1,110 ft335 m

Elevation profile, west to east

1.3 mi west to east through the town center.

Topographic Map

Topographic elevation map of North Sioux City, South Dakota, shaded from 1,080 ft near the middle to 1,120 ft on the northwest side
City limits (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
City in Union County, South Dakota, United States
Population
3,059 2024 est.
Land area
3.3 sq mi + 0.1 sq mi water
Density
917 per sq mi
Coordinates
42.5272° N, 96.4831° W
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
Drains to
Missouri River → Mississippi River → Gulf of America
Airport
Sioux Gateway/brig General Bud Day Field (SUX) 1,099 ft
ZIP codes 1
57049
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Sources: U.S. Census Bureau, USGS, FAA

Nearby Places

Nearby towns by typical elevation

  1. Sioux City, IA1,210 ft
  2. Jackson, NE1,120 ft
  3. Civil Bend Township1,120 ft
  4. Jefferson1,110 ft
  5. Jefferson Township1,110 ft
  6. North Sioux City1,110 ft
  7. South Sioux City, NE1,100 ft
  8. Dakota City, NE1,100 ft
  9. Big Sioux Township1,090 ft
  10. Dakota Dunes1,090 ft
  11. Sergeant Bluff, IA1,090 ft

Rankings by typical elevation

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).
  • 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. All public domain.