Article · Wikipedia archive · Last revised Jul 9, 2026

Missouri Key

Missouri Key is a small island in the lower Florida Keys.

Last revised
Jul 9, 2026
Read time
≈ 1 min
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Citations
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Source
Missouri Key
Satellite image of Ohio Key, Missouri Key, Little Duck Key of Lower Florida Keys
Missouri Key
Missouri Key
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Missouri Key
Missouri Key (Caribbean)
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Geography
LocationGulf of Mexico
Coordinates24°40′41″N 81°14′17″W / 24.678°N 81.238°W / 24.678; -81.238
ArchipelagoFlorida Keys
Adjacent toFlorida Straits
Administration
StateFlorida
CountyMonroe

Missouri Key is a small island in the lower Florida Keys.1

U.S. 1 (or the Overseas Highway) crosses the key at approximately mile marker 39.5, between Ohio Key and Little Duck Key.

The island was named during Henry Flagler's Overseas Railroad construction years by workers from that state.

It is sometimes known locally as Little Grassy Key or Grassy Island.

References

References

  1. Morris, B. (2008). Florida Keys & Everglades Travel Adventures. Adventure Guides Series (in Swedish). Hunter Publishing, Incorporated. p. pt216. ISBN 978-1-58843-559-0. Retrieved September 7, 2017.