Winneshiek County, IA Elevation & Topographic Map
Elevation
1,370 ft 420 m1,210 ft 370 m1,140 ft 345 m980 ft 300 m820 ft 250 m740 ft 225 m
Contours every 500 ft, bold every 2,500 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.
- County area
- Fades everything outside the official county boundary (US Census).
Elevation Data
Winneshiek County averages about 1,140 ft (350 m) above sea level across all its land. Its ground runs from 740 ft on the northeast side to 1,370 ft on the north side.
Average elevation
1,140 ft 350 m
all land inside the county
Highest
1,370 ft 420 m
on the north side
Lowest
740 ft 225 m
on the northeast side
Winneshiek County spans about 630 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.
| Figure | Elevation |
|---|---|
| Average of all land | 1,140 ft350 m |
| Highest point Inside the county, on the north side | 1,370 ft420 m |
| Lowest point Inside the county, on the northeast side | 740 ft225 m |
Elevation profile, south to north
29 mi south to north through Decorah.
Topographic Map
- Location
- County in Iowa, United States
- Population
- 19,723 2024 est.
- Land area
- 689.8 sq mi + 0.3 sq mi water
- Density
- 29 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
- Howard County1,250 ft
- Fillmore County, MN1,190 ft
- Winneshiek County1,140 ft
- Chickasaw County1,130 ft
- Fayette County1,100 ft
- Allamakee County1,010 ft
- Houston County, MN1,010 ft
Rankings by average elevation
- Counties in Iowa41st highest of 99
- Counties in the United States1,191st highest of 3,151
All 9 towns in Winneshiek County by typical elevation
- Burr Oak1,250 ft
- Calmar1,250 ft
- Ossian1,240 ft
- Castalia1,220 ft
- Ridgeway1,210 ft
- Jackson Junction1,120 ft
- Spillville1,060 ft
- Fort Atkinson1,020 ft
- Decorah900 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.
- 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.