The City of Key West, Florida

The Southernmost City in the Continental United States

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Elevation Maps of Ground Heights

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

Update (5/5/2017):  Try our new online digial elevation maps

Click here to use this new map.

Just type the address in the serch field. Then zoom in for a more uncluttered look

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.

Example:

LIDAR Example

Elevations - West

LIDAR West Thumbnail

Elevations - East

LIDAR east thumb

Contact Us

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