St. Mary's County Library

Now Open, Seeds, Seed endowment for education, discovery, and sustainability. Two brown paper packages of plant seeds.

A conference table with 10-12 office chairs. A wall mounted tv is at the front of the room.

Meeting and Study Rooms

Meeting rooms may be reserved for use by individuals, organizations, and businesses. Study Rooms at the Lexington Park and Leonardtown Libraries provide a quiet space for studying, small group discussions, tutoring, and other related activities.

Spring Book Sale

The Friends of the St. Mary's County Library Annual Spring Book Sale will be held April 24 - 26 at the St. Mary's County Fairgrounds. The book sale offers thousands of gently used books at amazing prices! Cash, check, credit cards accepted.

1040 Tax form

Tax Information

Find tax forms and local tax preparation help.

Upcoming Events

Mobile Library Stop at Challenger Estates -- Challenger Estates

Library services on the Mobile Library include Wi-Fi access, library card services, crafts to go, and materials for checkout!

The Great Cookies and Cream Face-Off -- Charlotte Hall Library

Take your tastebuds to the next level with the ultimate cookies and cream challenge!

Medieval Banners and Pennants Workshop -- Lexington Park Library

Discover the colorful world of medieval heraldry and the banners and pennants that once decorated castles, marketplaces, and battlefields.

Recent News

Summer Internship Opportunities – Youth Services

Closes at 11:59 p.m. on April 16

CLOSED – Job Opportunity – Security Associate I

Interviews March 26, 2026

Closed - Job Opportunity - Library Assistant I

Job closes at 11:59 PM on March 26, 2026