Located in the heart of the Keys, the Marathon Branch Library serves the city of Marathon and the Middle Keys. Parents and children, readers and researchers, tourists looking for local atmosphere — all come to the Marathon Branch to read, browse, learn, expand their horizons, and most of all, enjoy.

Contact Marathon

3251 Overseas Highway
Marathon, Florida 33050
(305) 743-5156
Library Manager:


Sunday: Closed
Monday: 9:30a — 6p
Tuesday: 9:30a — 6p
Wednesday: 9:30a — 8p
Thursday: 9:30a — 6p
Friday: 9:30a — 6p
Saturday: 10a — 6p