The Perrot Memorial Library serves 61,170 residents in Old Greenwich, Fairfield County, Connecticut. The library is privately owned by the Perrot Library Association and affiliated with the Greenwich Public Library. It maintains a collection of 60,597 volumes and circulates 262,163 items per year, including physical and digital collections. The library offers WiFi services, private study rooms, museum passes, interlibrary loans, and programs such as storytime, crafts, book discussion, and games.