Gwinnett County, GA Elevation & Topographic Map

Topographic elevation map of Gwinnett County, Georgia, shaded from 500 ft on the west side to 1,290 ft on the north side
Elevation
1,290 ft 390 m1,090 ft 330 m990 ft 300 m790 ft 240 m600 ft 180 m500 ft 150 m
Contours every 500 ft, bold every 2,500 ft
USGS 3DEP · U.S. Census Bureau
⤓ Download this map
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

Gwinnett County averages about 990 ft (305 m) above sea level across all its land. Its ground runs from 500 ft on the west side to 1,290 ft on the north side.

Average elevation
990 ft 305 m
all land inside the county
Highest
1,290 ft 390 m
on the north side
Lowest
500 ft 150 m
on the west side

Gwinnett County spans about 790 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 land990 ft305 m
Highest point
Inside the county, on the north side
1,290 ft390 m
Lowest point
Inside the county, on the west side
500 ft150 m

Elevation profile, west to east

24 mi west to east through Peachtree Corners.

Topographic Map

Topographic elevation map of Gwinnett County, Georgia, shaded from 500 ft on the west side to 1,290 ft on the north side
County boundary (dashed) over shaded terrain, with contours every 100 ft (30 m).
Location
County in Georgia, United States
Population
1,003,869 2024 est.
Land area
431.2 sq mi + 6.0 sq mi water
Density
2,328 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
Piedmont
Drains to
Atlantic Ocean 79%, Gulf of America 21%
⤓ Download this map

WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.

Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Forsyth County1,150 ft
  2. Hall County1,140 ft
  3. Gwinnett County990 ft
  4. Fulton County940 ft
  5. DeKalb County920 ft
  6. Barrow County870 ft
  7. Walton County810 ft
  8. Rockdale County790 ft

Rankings by average elevation

Peaks and hills highest inside

  • Lanier Mountain1,210 ft
  • Snellville Mountain1,191 ft
  • Pool Mountain1,090 ft
All 18 towns in Gwinnett County by typical elevation
  1. Rest Haven partly1,130 ft
  2. Buford1,130 ft
  3. Sugar Hill1,080 ft
  4. Grayson1,060 ft
  5. Mulberry1,040 ft
  6. Dacula1,030 ft
  7. Lawrenceville1,020 ft
  8. Suwanee1,020 ft
  9. Berkeley Lake1,010 ft
  10. Duluth1,010 ft
  11. Norcross1,000 ft
  12. Auburn partly1,000 ft
  13. Snellville990 ft
  14. Mountain Park990 ft
  15. Peachtree Corners960 ft
  16. Loganville partly950 ft
  17. Lilburn930 ft
  18. Braselton partly880 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, 330 ft at 33.9312° N, 84.1596° 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.