The City of Key West, Florida

The Southernmost City in the Continental United States


Elevation Maps of Ground Heights

If you don't know how high the ground is above sea level, these online maps showing elevation measurements across the city are a helpful tool.

These are ground measurements taken every 10-feet by aircraft, so they're approximate. Measurements by a Land Surveyor will be more accurate.

There are millions of measurement points on this map, so it may take awhile to load and when zooming-in. 

Online Digial Ground Elevations Map

Paper pdf versions

Note: These are very large files (approx. 70mgb), so depending upon your Internet access speed, they may take a few minutes to download. Once downloaded, keep these files on your computer for much faster access.

West:  Downtown, Old Town, to Palm Ave & First St.

East:  Mid-Town, New Town and Stock Island

Two sets of elevation data are shown on these maps, for comparison:

  • LiDAR (Light Detection and Ranging) aircraft readings from 2012 (Black numbers).
    • Technical info:
      • These readings were converted from their original 1988 NAVD datum to the 1929 NGVD datum (+1.35’) to match the current flood maps.
        • The 1988 datum readings were retained, just not displayed.
      • Shows every 6th elevation point.  Originally these measurements were taken every ten-feet (totaling 1.8m points), but unless you’re zoomed-in very close, they overlapped and turned the entire map black.  A 1:6 ratio made these readings readable at larger scales (totaling 1.9k points).
  • Surveyor Site Readings from 700 Elevation Certificates digitalized (red numbers)
    • LAG (Lowest Adjacent Grade) taken next to the buildings.
      • These red numbers may be plotted on the street, but they represent readings taken against the buildings at those addresses.

An Elevation Certificate from a Land Surveyor will be much more accurate and pertain to a specific building and the land upon which it rests.


LIDAR Example

Elevations - West

LIDAR West Thumbnail

Elevations - East

LIDAR east thumb

Contact Us

Scott Fraser,
FEMA Coordinator
Building Department
1300 White St
Key West, FL 33040
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