The King County Library System (KCLS) is one of the busiest public library systems in the country. Supporting the communities of King County (outside the city of Seattle), KCLS has 50 libraries and serves nearly 1.6 million people.
Founded in 1942, KCLS aims to inspire residents to succeed through ideas, interaction and information. And we envision a world where knowledge allows diverse communities to prosper and grow.
A free KCLS library card gives patrons access to a variety of materials, programs, services, events and resources. We provide welcoming spaces to learn, explore and connect with others. And we are a never-ending source of entertainment and enrichment for all ages.
Stop by your local library or visit kcls.org to learn more!
