Linn County, IA Elevation & Topographic Map

Topographic elevation map of Linn County, Iowa, shaded from 670 ft on the southeast side to 1,100 ft on the northeast side
Elevation
1,100 ft 335 m990 ft 300 m940 ft 285 m830 ft 255 m730 ft 220 m670 ft 205 m
Contours every 500 ft, bold every 2,500 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.
County area
Fades everything outside the official county boundary (US Census).

Elevation Data

Linn County averages about 850 ft (260 m) above sea level across all its land. Its ground runs from 670 ft on the southeast side to 1,100 ft on the northeast side.

Average elevation
850 ft 260 m
all land inside the county
Highest
1,100 ft 335 m
on the northeast side
Lowest
670 ft 205 m
on the southeast side

Linn County spans about 430 ft of height, so no single spot tells the whole story. The ruler shows where most of its land lies, and where the other numbers you'll see come from.

FigureElevation
Average of all land850 ft260 m
Highest point
Inside the county, on the northeast side
1,100 ft335 m
Lowest point
Inside the county, on the southeast side
670 ft205 m

Elevation profile, south to north

30 mi south to north through Cedar Rapids.

Topographic Map

Topographic elevation map of Linn County, Iowa, shaded from 670 ft on the southeast side to 1,100 ft on the northeast side
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Iowa, United States
Population
231,762 2024 est.
Land area
717.0 sq mi + 7.7 sq mi water
Density
323 per sq mi
Time zone
Central UTC−6 / −5
Landform region
Central Lowland
Drains to
Gulf of America
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Delaware County1,010 ft
  2. Buchanan County990 ft
  3. Benton County880 ft
  4. Jones County880 ft
  5. Linn County850 ft
  6. Cedar County780 ft
  7. Johnson County740 ft

Rankings by average elevation

  • Counties in Iowa80th highest of 99
  • Counties in the United States1,706th highest of 3,151
All 18 towns in Linn County by typical elevation
  1. Prairieburg980 ft
  2. Coggon920 ft
  3. Alburnett900 ft
  4. Walker880 ft
  5. Robins870 ft
  6. Lisbon860 ft
  7. Springville860 ft
  8. Hiawatha840 ft
  9. Central City840 ft
  10. Mount Vernon840 ft
  11. Marion840 ft
  12. Center Point830 ft
  13. Bertram820 ft
  14. Walford partly810 ft
  15. Cedar Rapids810 ft
  16. Fairfax780 ft
  17. Ely760 ft
  18. Palo750 ft
How we measure
  • Average: every USGS 3DEP bare-earth cell of land inside the Census county boundary (TIGER/Line, Jan 1 2026), weighted equally, on a 1 arc-second (≈100 ft, 30 m) grid. Land means the boundary minus Census area water.
  • Highest and lowest: the highest land cell. Lowest: the lowest land cell; coastal ground within 3 ft (1 m) of named tidal water counts as sea level.
  • 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, 500 ft at 41.9260° N, 91.7076° W, is in such a hollow or patch and is not counted.
  • Nearby Places: neighboring counties and rankings use each one's average elevation, on its own grid, the same figure its page shows. Peaks and hills: the highest summits inside the county with at least 980 ft (300 m) of prominence, then the highest federal (GNIS) summits inside it 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).
  • Towns: each town's typical elevation (population-weighted median of its own 2020 blocks at 1 arc-second); a town is listed when any of its 2020 residents live in the county.
  • 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 (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 (TIGER boundaries and water, 2020 blocks, 2024 population estimates, county adjacency); NOAA NGS survey heights; BTS time zones. All public domain.