The Middletown Library serves 725 residents in the Middletown region and is a part of the Lake County Library. The library system maintains 150,573 volumes and circulates 259,315 items per year. The Middletown Library is housed in a 5,500-square-foot building with a Middletown Seed Lending Library, eight public computers, and over 20,000 books, DVDs, and audiobooks. It offers free public Wi-Fi, internet access, a public access printer, a copy machine, and various programs for all ages.