The South Plainfield Historical Society, founded in 1977 as a non-profit 501c3, collects and manages a repository of local historical material in its History Center headquarters at Highland Woods Nature Reserve, 115 Sylvania Place, So. Plainfield. The Center, an ADA accessible facility at the Borough-owned environmental education reserve, is open once a month (currently the first Saturday of the month from 11 am to 1 pm) to society members and the general public at no charge. Monthly membership meetings are held the second Tuesday of the month at 7 pm. The public is welcome to attend.
The History Center’s collection includes wall displays, photographs, maps, newspapers, vintage clothing, memorabilia, scrapbooks and a non-lending library. The Historical Society also maintains a Facebook page with postings of photographs and stories from So. Plainfield’s past.