Nassau County, FL Elevation & Topographic Map

Topographic elevation map of Nassau County, Florida, shaded from sea level on the Atlantic Ocean to 120 ft on the southwest side
Elevation
120 ft 35 m91 ft 28 m76 ft 23 m46 ft 14 m15 ft 5 m0 ft 0 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

Nassau County averages about 38 ft (11 m) above sea level across all its land. Its ground runs from sea level on the Atlantic Ocean to 120 ft on the southwest side.

Average elevation
38 ft 11 m
all land inside the county
Highest
120 ft 35 m
on the southwest side
Lowest
0 ft 0 m
at sea level on the Atlantic Ocean

Nassau County spans about 120 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.

6% of Nassau County's land lies below the average daily high tide (MHHW, NOAA), and 6% lies less than 3 ft above it. Check flood zones on FEMA's map

FigureElevation
Average of all land38 ft11 m
Highest point
Inside the county, on the southwest side
120 ft35 m
Lowest point
Where the land meets the Atlantic Ocean
0 ft0 m

Elevation profile, west to east

39 mi west to east through Yulee.

Topographic Map

Topographic elevation map of Nassau County, Florida, shaded from sea level on the Atlantic Ocean to 120 ft on the southwest side
County boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
County in Florida, United States
Population
104,376 2024 est.
Land area
648.7 sq mi + 77.2 sq mi water
Density
161 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
Coastal Plain 97%
Drains to
Atlantic Ocean
⤓ 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. Baker County130 ft
  2. Charlton County, GA98 ft
  3. Nassau County38 ft
  4. Duval County35 ft
  5. Camden County, GA14 ft

Rankings by average elevation

Peaks and hills highest inside

  • McClure Hill48 ft
All 5 towns in Nassau County by typical elevation
  1. Hilliard78 ft
  2. Yulee22 ft
  3. Nassau Village-Ratliff18 ft
  4. Fernandina Beach17 ft
  5. Callahan16 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, −7 ft at 30.6282° N, 81.5157° W, is in such a hollow or patch and is not counted; this coastal land's lowest point is sea level on the coast.
  • 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; NOAA tidal surfaces (MHHW). All public domain.