Libraries have existed in the United States since before the country was an independent nation. Given the long tradition, there are several establishments that could be deemed the oldest library in America. It depends whether you consider the oldest free public library, the first library building or the oldest library of any kind.
What is the oldest subscription library?
The oldest subscription library in the United States is the Library Company of Philadelphia, which Benjamin Franklin founded in November 1731. At the time, Franklin was a member of a group called Junto, a club of thinkers that assembled to talk about “queries on any point of Morals, Politics, or Natural Philosophy,” as the Founding Father put it in his autobiography. Club members, most of whom were merchants, wanted access to books other than their own to inspire their weekly discussions. The first 50 Library Company members each invested 40 shillings to build the book collection, which notably included volumes in English at a time when most books at private and university libraries were written in Latin. Nonmembers of the subscription library could borrow books if they provided collateral.