Please note: The Big Pine Key branch is closed for upgrades and is expected to re-open soon. See the post below for updates and FAQs.

Marathon Branch Library

Located in the heart of the Keys, the Marathon Branch Library serves the city of Marathon and the Middle Keys.

3490 Overseas Highway
Marathon, Florida 33050

(305) 743-5156

Hours of Operation

Monday: 9:00 am – 5:00 pm
Tuesday: 9:00 am – 7:00 pm
Wednesday: 9:00 am – 7:00 pm
Thursday: 9:00 am – 7:00 pm
Friday: 9:00 am – 7:00 pm
Saturday: 9:00 am – 5:00 pm
Sunday: Closed

Mobile printing link

    Marathon Branch News

  • The Marathon Branch Library Launches 24/7 Locker System

    Unlock your next read! Marathon Branch Library is pleased to introduce an […]

  • Welcome to our new library

    For the first time in over 20 years, Monroe County has a […]

Marathon Branch Events