The State Library of Ohio is a state agency that provides services to state government and all types of libraries to ensure that all Ohio residents, rich or poor, rural or urban, receive the best possible library service and are able to engage in lifelong learning which strengthens the economic health of Ohio.

The State Library is governed by a five-member board.

[4] In June 1927, a lack of funds caused the library to close.

Due to volunteer efforts it reopened a few months later but did not have state funding until the next year.

[4][5] In December 2000, the State Library moved from the Ohio Departments Building into the Jeffrey Mining Corporate Center,[5] a converted factory that produced mining machinery.