Walnut Library serves 28,000 residents in the City of Walnut. Founded in 1916, the library belongs to the County of Los Angeles Public Library system. The library system maintains 4.8 million volumes and circulates 14.1 million items per year. Walnut Library offers books, e-books, audiobooks, magazines, large print books, language collections, research databases, computers for public use, and photocopying services.