Jackson County, IA Elevation & Topographic Map

Topographic elevation map of Jackson County, Iowa, shaded from 580 ft on the southeast side to 1,140 ft on the northwest side
Elevation
1,140 ft 350 m1,000 ft 305 m930 ft 285 m790 ft 240 m650 ft 200 m580 ft 175 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

Jackson County averages about 810 ft (250 m) above sea level across all its land. Its ground runs from 580 ft on the southeast side to 1,140 ft on the northwest side.

Average elevation
810 ft 250 m
all land inside the county
Highest
1,140 ft 350 m
on the northwest side
Lowest
580 ft 175 m
on the southeast side

Jackson County spans about 560 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 land810 ft250 m
Highest point
Inside the county, on the northwest side
1,140 ft350 m
Lowest point
Inside the county, on the southeast side
580 ft175 m

Elevation profile, south to north

18 mi south to north through Maquoketa.

Topographic Map

Topographic elevation map of Jackson County, Iowa, shaded from 580 ft on the southeast side to 1,140 ft on the northwest side
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Iowa, United States
Population
19,390 2024 est.
Land area
636.0 sq mi + 13.6 sq mi water
Density
30 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. Dubuque County970 ft
  2. Jones County880 ft
  3. Jo Daviess County, IL840 ft
  4. Jackson County810 ft
  5. Carroll County, IL780 ft
  6. Clinton County720 ft

Rankings by average elevation

  • Counties in Iowa84th highest of 99
  • Counties in the United States1,781st highest of 3,151

Peaks and hills highest inside

  • Goose Rock930 ft
All 13 towns in Jackson County by typical elevation
  1. La Motte950 ft
  2. Zwingle partly940 ft
  3. Andrew870 ft
  4. Springbrook820 ft
  5. Miles810 ft
  6. Monmouth750 ft
  7. Baldwin730 ft
  8. Maquoketa710 ft
  9. St. Donatus690 ft
  10. Preston660 ft
  11. Bellevue630 ft
  12. Spragueville630 ft
  13. Sabula590 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.