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About PLS

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The Peninsula Library System (PLS) is a consortium of 35 public and community college libraries working together to provide innovative and cost-effective service to their users. Founded in 1971, the system is funded primarily by member libraries. PLS also receives support from the state California Library Services Act funds, federal Library Services and Technology Act and local contracts for special services.

Thanks to PLS leadership and the cooperation of its members, residents of San Mateo County can borrow and return books at any local library. They can search a joint catalog of member library holdings and use other library services by logging on to www.plsinfo.org. PLS operates a reference backup service for member libraries.


"The Peninsula Library System strengthens local libraries through cooperation, enabling them to provide better service to their diverse communities."

PLS Administrative Council Meetings


Senate Bill 272 - Enterprise System Catalog

SB 272 Enterprise System Catalog


Contact Us

Main Office
2471 Flores Street
San Mateo, CA 94403

General Information
Phone: 650-349-5538
Email: info@plsinfo.org

Carol Frost
Email: frost@plpinfo.org