It has nine locations that serve over 280,000 residents in Kitsap County; its collection includes over 300,000 items that have an annual circulation of 2.4 million.

It was originally located at the former horse stables of the fire department and housed 1,000 books, primarily works donated by the Seattle Public Library and private contributors.

[3] Bremerton voters passed a bond measure in 1937 to build a permanent library, which would also be financed with Works Progress Administration grant.

[9] At the date of its creation, Kitsap Regional Library included a regional service center at Bremerton; stations at Eglon, Retsil, Seabeck, Kingston, Erlands Point, Manchester, Navy Yard City, Port Gamble, Silverdale, Tracyton, Rolling Bay and Suquamish; and one branch library in Poulsbo.

Each location offers a collection of books, audiobooks, CDs and DVDs and other materials; access to computers and technology assistance; public meeting spaces; and classes and events that are free and open to all.

[citation needed] In addition to book borrowing, the Kitsap Regional Library offers access to online databases and subscriptions as well as various programs at its branches.

The project, titled Make Do Share, collects tools and resources to support staff in planning, facilitating and improving STEM programs for youth.

There are also seven active Friends of the Library groups that organize volunteers to run book sales and fundraising events.