DeKalb County, GA Elevation & Topographic Map

Topographic elevation map of DeKalb County, Georgia, shaded from 650 ft on the south side to 1,683 ft on Stone Mountain
Elevation
1,680 ft 515 m1,420 ft 435 m1,290 ft 395 m1,040 ft 315 m780 ft 235 m650 ft 195 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

DeKalb County averages about 920 ft (280 m) above sea level across all its land. Its ground runs from 650 ft on the south side to 1,683 ft on Stone Mountain.

Average elevation
920 ft 280 m
all land inside the county
Highest
1,683 ft 513 m
on Stone Mountain
Lowest
650 ft 195 m
on the south side

DeKalb County spans about 1,030 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 land920 ft280 m
Highest point
Inside the county, on Stone Mountain (NGS survey height)
1,683 ft513 m
Lowest point
Inside the county, on the south side
650 ft195 m

Elevation profile, south to north

15 mi south to north through Stonecrest.

Topographic Map

Topographic elevation map of DeKalb County, Georgia, shaded from 650 ft on the south side to 1,683 ft on Stone Mountain
County boundary (dashed) over shaded terrain, with contours every 100 ft (30 m).
Location
County in Georgia, United States
Population
770,307 2024 est.
Land area
267.6 sq mi + 3.4 sq mi water
Density
2,878 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
Piedmont
Drains to
Atlantic Ocean 71%, Gulf of America 29%
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Gwinnett County990 ft
  2. Fulton County940 ft
  3. DeKalb County920 ft
  4. Clayton County880 ft
  5. Rockdale County790 ft
  6. Henry County780 ft

Rankings by average elevation

Peaks and hills highest inside

  • Stone Mountain1,683 ft
  • Pine Mountain, DeKalb County1,064 ft
  • Druid Hill1,020 ft
  • Rock Chapel Mountain980 ft
  • Arabia Mountain954 ft
All 23 towns in DeKalb County by typical elevation
  1. Tucker1,040 ft
  2. Avondale Estates1,030 ft
  3. Dunwoody1,020 ft
  4. Decatur1,010 ft
  5. Doraville1,000 ft
  6. Clarkston990 ft
  7. Sandy Springs partly990 ft
  8. Stone Mountain980 ft
  9. Scottdale980 ft
  10. North Decatur980 ft
  11. Pine Lake970 ft
  12. Chamblee970 ft
  13. Belvedere Park970 ft
  14. Atlanta partly940 ft
  15. North Druid Hills940 ft
  16. Brookhaven940 ft
  17. Lithonia940 ft
  18. Druid Hills930 ft
  19. Candler-McAfee930 ft
  20. Redan910 ft
  21. Gresham Park890 ft
  22. Panthersville860 ft
  23. Stonecrest850 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; it is a named summit, so its height is the peak method: the 3DEP top on a ~7 ft (2 m) window, or the NGS published height when a survey mark sits within 160 ft (50 m) of it. 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, 460 ft at 33.7104° N, 84.0724° 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.